feat(mail): 支持发件人名称展示与存储

- 为邮件消息新增 `fromName` 字段，并同步扩展数据库迁移、API 类型与前后端查询/入库逻辑。
- 解析入站邮件时提取并保存发件人名称，发信时将邮箱显示名写入 MIME `From` 头。
- 邮件列表、详情、通知与引用内容改为优先展示发件人名称，提升可读性。

apps/api/internal/app/admin_handlers.go

@@ -657,13 +657,13 @@ func (a *App) handleAdminMessages(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 	if q != "" {
-		where = append(where, "(m.subject LIKE ? OR m.from_addr LIKE ? OR m.to_addrs LIKE ? OR m.recipient_addr LIKE ? OR m.snippet LIKE ? OR m.body_text LIKE ? OR mb.address LIKE ? OR u.email LIKE ?)")
+		where = append(where, "(m.subject LIKE ? OR m.from_addr LIKE ? OR m.from_name LIKE ? OR m.to_addrs LIKE ? OR m.recipient_addr LIKE ? OR m.snippet LIKE ? OR m.body_text LIKE ? OR mb.address LIKE ? OR u.email LIKE ?)")
 		like := "%" + q + "%"
-		args = append(args, like, like, like, like, like, like, like, like)
+		args = append(args, like, like, like, like, like, like, like, like, like)
 	}
 	args = append(args, limit+1, offset)
 
-	rows, err := a.db.QueryContext(r.Context(), `SELECT m.id,COALESCE(m.mailbox_id,''),COALESCE(mb.address,''),COALESCE(u.email,''),COALESCE(m.recipient_addr,''),COALESCE(m.folder_id,''),COALESCE(f.name,'Unregistered'),m.message_uid,m.message_id,m.subject,m.from_addr,m.to_addrs,m.cc_addrs,m.bcc_addrs,m.sent_at,m.received_at,m.snippet,m.is_read,m.is_starred,m.has_attachments,m.size_bytes
+	rows, err := a.db.QueryContext(r.Context(), `SELECT m.id,COALESCE(m.mailbox_id,''),COALESCE(mb.address,''),COALESCE(u.email,''),COALESCE(m.recipient_addr,''),COALESCE(m.folder_id,''),COALESCE(f.name,'Unregistered'),m.message_uid,m.message_id,m.subject,m.from_addr,COALESCE(m.from_name,''),m.to_addrs,m.cc_addrs,m.bcc_addrs,m.sent_at,m.received_at,m.snippet,m.is_read,m.is_starred,m.has_attachments,m.size_bytes
 		FROM messages m
 		LEFT JOIN folders f ON f.id=m.folder_id
 		LEFT JOIN mailboxes mb ON mb.id=m.mailbox_id

apps/api/internal/app/app.go

@@ -193,6 +193,7 @@ func (a *App) migrate(ctx context.Context) error {
 			message_id TEXT NOT NULL,
 			subject TEXT NOT NULL,
 			from_addr TEXT NOT NULL,
+			from_name TEXT NOT NULL DEFAULT '',
 			to_addrs TEXT NOT NULL,
 			cc_addrs TEXT NOT NULL DEFAULT '[]',
 			bcc_addrs TEXT NOT NULL DEFAULT '[]',
@@ -210,7 +211,7 @@ func (a *App) migrate(ctx context.Context) error {
 			updated_at TEXT NOT NULL
 		)`,
 		`CREATE INDEX IF NOT EXISTS idx_messages_mailbox_folder_received ON messages(mailbox_id, folder_id, received_at DESC)`,
-		`CREATE INDEX IF NOT EXISTS idx_messages_search ON messages(mailbox_id, subject, from_addr, snippet)`,
+		`CREATE INDEX IF NOT EXISTS idx_messages_search ON messages(mailbox_id, subject, from_addr, from_name, snippet)`,
 		`CREATE UNIQUE INDEX IF NOT EXISTS idx_messages_mailbox_raw_path ON messages(mailbox_id, raw_path) WHERE raw_path <> '' AND mailbox_id IS NOT NULL`,
 		`CREATE UNIQUE INDEX IF NOT EXISTS idx_messages_unregistered_raw_path ON messages(raw_path) WHERE raw_path <> '' AND mailbox_id IS NULL`,
 		`CREATE TABLE IF NOT EXISTS attachments (
@@ -299,6 +300,9 @@ func (a *App) migrate(ctx context.Context) error {
 	if err := a.migrateMessagesForUnregistered(ctx); err != nil {
 		return err
 	}
+	if err := a.migrateMessagesFromName(ctx); err != nil {
+		return err
+	}
 	if err := a.migrateUsersForTwoFactor(ctx); err != nil {
 		return err
 	}
@@ -568,6 +572,7 @@ func (a *App) migrateMessagesForUnregistered(ctx context.Context) error {
 		message_id TEXT NOT NULL,
 		subject TEXT NOT NULL,
 		from_addr TEXT NOT NULL,
+		from_name TEXT NOT NULL DEFAULT '',
 		to_addrs TEXT NOT NULL,
 		cc_addrs TEXT NOT NULL DEFAULT '[]',
 		bcc_addrs TEXT NOT NULL DEFAULT '[]',
@@ -586,8 +591,8 @@ func (a *App) migrateMessagesForUnregistered(ctx context.Context) error {
 	)`); err != nil {
 		return err
 	}
-	if _, err := tx.ExecContext(ctx, `INSERT INTO messages_new(id,mailbox_id,folder_id,recipient_addr,message_uid,message_id,subject,from_addr,to_addrs,cc_addrs,bcc_addrs,sent_at,received_at,snippet,body_text,body_html,is_read,is_starred,has_attachments,size_bytes,raw_path,created_at,updated_at)
+	if _, err := tx.ExecContext(ctx, `INSERT INTO messages_new(id,mailbox_id,folder_id,recipient_addr,message_uid,message_id,subject,from_addr,from_name,to_addrs,cc_addrs,bcc_addrs,sent_at,received_at,snippet,body_text,body_html,is_read,is_starred,has_attachments,size_bytes,raw_path,created_at,updated_at)
-		SELECT id,mailbox_id,folder_id,'',message_uid,message_id,subject,from_addr,to_addrs,cc_addrs,bcc_addrs,sent_at,received_at,snippet,body_text,body_html,is_read,is_starred,has_attachments,size_bytes,raw_path,created_at,updated_at FROM messages`); err != nil {
+		SELECT id,mailbox_id,folder_id,'',message_uid,message_id,subject,from_addr,'',to_addrs,cc_addrs,bcc_addrs,sent_at,received_at,snippet,body_text,body_html,is_read,is_starred,has_attachments,size_bytes,raw_path,created_at,updated_at FROM messages`); err != nil {
 		return err
 	}
 	if _, err := tx.ExecContext(ctx, `DROP TABLE messages`); err != nil {
@@ -607,10 +612,47 @@ func (a *App) migrateMessagesForUnregistered(ctx context.Context) error {
 	return nil
 }
 
+func (a *App) migrateMessagesFromName(ctx context.Context) error {
+	rows, err := a.db.QueryContext(ctx, `PRAGMA table_info(messages)`)
+	if err != nil {
+		return err
+	}
+	defer rows.Close()
+	hasFromName := false
+	for rows.Next() {
+		var cid int
+		var name, typ string
+		var notnull int
+		var dflt any
+		var pk int
+		if err := rows.Scan(&cid, &name, &typ, &notnull, &dflt, &pk); err != nil {
+			return err
+		}
+		if name == "from_name" {
+			hasFromName = true
+		}
+	}
+	if err := rows.Err(); err != nil {
+		return err
+	}
+	if !hasFromName {
+		if _, err := a.db.ExecContext(ctx, `ALTER TABLE messages ADD COLUMN from_name TEXT NOT NULL DEFAULT ''`); err != nil {
+			return err
+		}
+	}
+	if _, err := a.db.ExecContext(ctx, `DROP INDEX IF EXISTS idx_messages_search`); err != nil {
+		return err
+	}
+	if _, err := a.db.ExecContext(ctx, `CREATE INDEX IF NOT EXISTS idx_messages_search ON messages(mailbox_id, subject, from_addr, from_name, snippet)`); err != nil {
+		return err
+	}
+	return nil
+}
+
 func messageIndexes() []string {
 	return []string{
 		`CREATE INDEX IF NOT EXISTS idx_messages_mailbox_folder_received ON messages(mailbox_id, folder_id, received_at DESC)`,
-		`CREATE INDEX IF NOT EXISTS idx_messages_search ON messages(mailbox_id, subject, from_addr, snippet)`,
+		`CREATE INDEX IF NOT EXISTS idx_messages_search ON messages(mailbox_id, subject, from_addr, from_name, snippet)`,
 		`CREATE UNIQUE INDEX IF NOT EXISTS idx_messages_mailbox_raw_path ON messages(mailbox_id, raw_path) WHERE raw_path <> '' AND mailbox_id IS NOT NULL`,
 		`CREATE UNIQUE INDEX IF NOT EXISTS idx_messages_unregistered_raw_path ON messages(raw_path) WHERE raw_path <> '' AND mailbox_id IS NULL`,
 	}
@@ -809,6 +851,7 @@ func (a *App) seedWelcomeMessage(ctx context.Context, mailboxID string) error {
 		MessageID:  fmt.Sprintf("<%s@lanqin.local>", newID("msg")),
 		Subject:    subject,
 		From:       "system@lanqin.local",
+		FromName:   "LanQin Email",
 		To:         []string{a.cfg.AdminEmail},
 		SentAt:     now,
 		ReceivedAt: now,

apps/api/internal/app/mail_handlers.go

@@ -31,6 +31,7 @@ type storedMessage struct {
 	MessageID     string
 	Subject       string
 	From          string
+	FromName      string
 	To            []string
 	CC            []string
 	BCC           []string
@@ -144,12 +145,12 @@ func (a *App) respondMailMessageList(w http.ResponseWriter, r *http.Request, whe
 	limit := 30
 
 	if q != "" {
-		where += ` AND (m.subject LIKE ? OR m.from_addr LIKE ? OR m.snippet LIKE ? OR m.body_text LIKE ?)`
+		where += ` AND (m.subject LIKE ? OR m.from_addr LIKE ? OR m.from_name LIKE ? OR m.snippet LIKE ? OR m.body_text LIKE ?)`
 		like := "%" + q + "%"
-		args = append(args, like, like, like, like)
+		args = append(args, like, like, like, like, like)
 	}
 	args = append(args, limit+1, offset)
-	query := `SELECT m.id,m.mailbox_id,m.folder_id,COALESCE(f.name,''),m.message_uid,m.message_id,m.subject,m.from_addr,m.to_addrs,m.cc_addrs,m.bcc_addrs,m.sent_at,m.received_at,m.snippet,m.is_read,m.is_starred,m.has_attachments,m.size_bytes
+	query := `SELECT m.id,m.mailbox_id,m.folder_id,COALESCE(f.name,''),m.message_uid,m.message_id,m.subject,m.from_addr,COALESCE(m.from_name,''),m.to_addrs,m.cc_addrs,m.bcc_addrs,m.sent_at,m.received_at,m.snippet,m.is_read,m.is_starred,m.has_attachments,m.size_bytes
 		FROM messages m LEFT JOIN folders f ON f.id=m.folder_id WHERE ` + where + ` ORDER BY m.received_at DESC LIMIT ? OFFSET ?`
 	rows, err := a.db.QueryContext(r.Context(), query, args...)
 	if err != nil {
@@ -322,7 +323,7 @@ func (a *App) handleMailSend(w http.ResponseWriter, r *http.Request) {
 	now := a.now().UTC()
 	messageID := fmt.Sprintf("<%s@%s>", newID("msg"), strings.Split(mb.Address, "@")[1])
 	mimeBytes, err := BuildMIME(MIMEMessage{
-		From: mb.Address, To: req.To, CC: req.CC, BCC: req.BCC, Subject: req.Subject, Text: req.Text, HTML: req.HTML, MessageID: messageID, Date: now, Attachments: req.Attachments,
+		From: mb.Address, FromName: mb.DisplayName, To: req.To, CC: req.CC, BCC: req.BCC, Subject: req.Subject, Text: req.Text, HTML: req.HTML, MessageID: messageID, Date: now, Attachments: req.Attachments,
 	})
 	if err != nil {
 		badRequest(w, err)
@@ -340,7 +341,7 @@ func (a *App) handleMailSend(w http.ResponseWriter, r *http.Request) {
 		respondError(w, http.StatusInternalServerError, "failed to load sent folder")
 		return
 	}
-	base := storedMessage{MailboxID: mb.ID, FolderID: sentFolderID, MessageUID: newID("uid"), MessageID: messageID, Subject: req.Subject, From: mb.Address, To: req.To, CC: req.CC, BCC: req.BCC, SentAt: now, ReceivedAt: now, Snippet: snippetFrom(req.Text, req.HTML), BodyText: req.Text, BodyHTML: req.HTML, IsRead: true}
+	base := storedMessage{MailboxID: mb.ID, FolderID: sentFolderID, MessageUID: newID("uid"), MessageID: messageID, Subject: req.Subject, From: mb.Address, FromName: mb.DisplayName, To: req.To, CC: req.CC, BCC: req.BCC, SentAt: now, ReceivedAt: now, Snippet: snippetFrom(req.Text, req.HTML), BodyText: req.Text, BodyHTML: req.HTML, IsRead: true}
 	sentID, err := a.insertMessage(r.Context(), base, req.Attachments)
 	if err != nil {
 		respondError(w, http.StatusInternalServerError, "failed to store sent message")
@@ -617,7 +618,7 @@ func (a *App) loadMessageForRequest(r *http.Request, id string, includeBody bool
 }
 
 func (a *App) messageByID(ctx context.Context, id string, includeBody bool) (*MailMessage, error) {
-	row := a.db.QueryRowContext(ctx, `SELECT m.id,COALESCE(m.mailbox_id,''),COALESCE(m.recipient_addr,''),COALESCE(m.folder_id,''),COALESCE(f.name,'Unregistered'),m.message_uid,m.message_id,m.subject,m.from_addr,m.to_addrs,m.cc_addrs,m.bcc_addrs,m.sent_at,m.received_at,m.snippet,m.body_text,m.body_html,m.is_read,m.is_starred,m.has_attachments,m.size_bytes
+	row := a.db.QueryRowContext(ctx, `SELECT m.id,COALESCE(m.mailbox_id,''),COALESCE(m.recipient_addr,''),COALESCE(m.folder_id,''),COALESCE(f.name,'Unregistered'),m.message_uid,m.message_id,m.subject,m.from_addr,COALESCE(m.from_name,''),m.to_addrs,m.cc_addrs,m.bcc_addrs,m.sent_at,m.received_at,m.snippet,m.body_text,m.body_html,m.is_read,m.is_starred,m.has_attachments,m.size_bytes
 		FROM messages m LEFT JOIN folders f ON f.id=m.folder_id WHERE m.id=?`, id)
 	msg, err := scanMessageFull(row, includeBody)
 	if err != nil {
@@ -656,8 +657,8 @@ func (a *App) insertMessage(ctx context.Context, msg storedMessage, attachments
 		folderID = msg.FolderID
 	}
 	recipientAddr := normalizeEmail(msg.RecipientAddr)
-	_, err := a.db.ExecContext(ctx, `INSERT INTO messages(id,mailbox_id,folder_id,recipient_addr,message_uid,message_id,subject,from_addr,to_addrs,cc_addrs,bcc_addrs,sent_at,received_at,snippet,body_text,body_html,is_read,is_starred,has_attachments,size_bytes,raw_path,created_at,updated_at)
+	_, err := a.db.ExecContext(ctx, `INSERT INTO messages(id,mailbox_id,folder_id,recipient_addr,message_uid,message_id,subject,from_addr,from_name,to_addrs,cc_addrs,bcc_addrs,sent_at,received_at,snippet,body_text,body_html,is_read,is_starred,has_attachments,size_bytes,raw_path,created_at,updated_at)
-		VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)`, id, mailboxID, folderID, recipientAddr, msg.MessageUID, msg.MessageID, msg.Subject, msg.From, jsonEncode(msg.To), jsonEncode(msg.CC), jsonEncode(msg.BCC), msg.SentAt.Format(time.RFC3339Nano), msg.ReceivedAt.Format(time.RFC3339Nano), msg.Snippet, msg.BodyText, msg.BodyHTML, boolInt(msg.IsRead), boolInt(msg.IsStarred), boolInt(hasAttachments), size, msg.RawPath, now, now)
+		VALUES(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)`, id, mailboxID, folderID, recipientAddr, msg.MessageUID, msg.MessageID, msg.Subject, msg.From, msg.FromName, jsonEncode(msg.To), jsonEncode(msg.CC), jsonEncode(msg.BCC), msg.SentAt.Format(time.RFC3339Nano), msg.ReceivedAt.Format(time.RFC3339Nano), msg.Snippet, msg.BodyText, msg.BodyHTML, boolInt(msg.IsRead), boolInt(msg.IsStarred), boolInt(hasAttachments), size, msg.RawPath, now, now)
 	if err != nil {
 		return "", err
 	}
@@ -867,7 +868,7 @@ func scanAdminMessageSummary(row messageSummaryScanner) (MailMessage, error) {
 	var msg MailMessage
 	var toJSON, ccJSON, bccJSON, sent, received string
 	var read, starred, hasAtt int
-	err := row.Scan(&msg.ID, &msg.MailboxID, &msg.MailboxAddress, &msg.OwnerEmail, &msg.RecipientAddr, &msg.FolderID, &msg.Folder, &msg.MessageUID, &msg.MessageID, &msg.Subject, &msg.From, &toJSON, &ccJSON, &bccJSON, &sent, &received, &msg.Snippet, &read, &starred, &hasAtt, &msg.SizeBytes)
+	err := row.Scan(&msg.ID, &msg.MailboxID, &msg.MailboxAddress, &msg.OwnerEmail, &msg.RecipientAddr, &msg.FolderID, &msg.Folder, &msg.MessageUID, &msg.MessageID, &msg.Subject, &msg.From, &msg.FromName, &toJSON, &ccJSON, &bccJSON, &sent, &received, &msg.Snippet, &read, &starred, &hasAtt, &msg.SizeBytes)
 	if err != nil {
 		return msg, err
 	}
@@ -881,7 +882,7 @@ func scanMessageSummary(row messageSummaryScanner) (MailMessage, error) {
 	var msg MailMessage
 	var toJSON, ccJSON, bccJSON, sent, received string
 	var read, starred, hasAtt int
-	err := row.Scan(&msg.ID, &msg.MailboxID, &msg.FolderID, &msg.Folder, &msg.MessageUID, &msg.MessageID, &msg.Subject, &msg.From, &toJSON, &ccJSON, &bccJSON, &sent, &received, &msg.Snippet, &read, &starred, &hasAtt, &msg.SizeBytes)
+	err := row.Scan(&msg.ID, &msg.MailboxID, &msg.FolderID, &msg.Folder, &msg.MessageUID, &msg.MessageID, &msg.Subject, &msg.From, &msg.FromName, &toJSON, &ccJSON, &bccJSON, &sent, &received, &msg.Snippet, &read, &starred, &hasAtt, &msg.SizeBytes)
 	if err != nil {
 		return msg, err
 	}
@@ -896,7 +897,7 @@ func scanMessageFull(row messageSummaryScanner, includeBody bool) (MailMessage,
 	var toJSON, ccJSON, bccJSON, sent, received string
 	var read, starred, hasAtt int
 	var bodyText, bodyHTML string
-	err := row.Scan(&msg.ID, &msg.MailboxID, &msg.RecipientAddr, &msg.FolderID, &msg.Folder, &msg.MessageUID, &msg.MessageID, &msg.Subject, &msg.From, &toJSON, &ccJSON, &bccJSON, &sent, &received, &msg.Snippet, &bodyText, &bodyHTML, &read, &starred, &hasAtt, &msg.SizeBytes)
+	err := row.Scan(&msg.ID, &msg.MailboxID, &msg.RecipientAddr, &msg.FolderID, &msg.Folder, &msg.MessageUID, &msg.MessageID, &msg.Subject, &msg.From, &msg.FromName, &toJSON, &ccJSON, &bccJSON, &sent, &received, &msg.Snippet, &bodyText, &bodyHTML, &read, &starred, &hasAtt, &msg.SizeBytes)
 	if err != nil {
 		return msg, err
 	}

apps/api/internal/app/maildir_sync.go

@@ -354,7 +354,7 @@ func (a *App) parseMaildirMessage(raw []byte, fallbackTo string) (storedMessage,
 	if strings.TrimSpace(subject) == "" {
 		subject = "(no subject)"
 	}
-	from := firstAddress(m.Header.Get("From"))
+	from, fromName := firstAddressParts(m.Header.Get("From"))
 	to := addressList(m.Header.Get("To"))
 	cc := addressList(m.Header.Get("Cc"))
 	if len(to) == 0 {
@@ -382,6 +382,7 @@ func (a *App) parseMaildirMessage(raw []byte, fallbackTo string) (storedMessage,
 		MessageID:  strings.TrimSpace(m.Header.Get("Message-Id")),
 		Subject:    subject,
 		From:       from,
+		FromName:   fromName,
 		To:         to,
 		CC:         cc,
 		SentAt:     sentAt,
@@ -480,12 +481,13 @@ func partFilename(header textproto.MIMEHeader) string {
 	return ""
 }
 
-func firstAddress(value string) string {
+func firstAddressParts(value string) (string, string) {
-	items := addressList(value)
+	items, err := netmail.ParseAddressList(value)
-	if len(items) == 0 {
+	if err != nil || len(items) == 0 {
-		return strings.TrimSpace(value)
+		return strings.TrimSpace(value), ""
 	}
-	return items[0]
+	item := items[0]
+	return normalizeEmail(item.Address), strings.TrimSpace(item.Name)
 }
 
 func addressList(value string) []string {

apps/api/internal/app/mime.go

@@ -10,6 +10,7 @@ import (
 	"mime"
 	"mime/multipart"
 	"net"
+	netmail "net/mail"
 	"net/smtp"
 	"net/textproto"
 	"strings"
@@ -20,6 +21,7 @@ const smtpSessionTimeout = 45 * time.Second
 
 type MIMEMessage struct {
 	From        string
+	FromName    string
 	To          []string
 	CC          []string
 	BCC         []string
@@ -38,7 +40,7 @@ func BuildMIME(m MIMEMessage) ([]byte, error) {
 			fmt.Fprintf(&buf, "%s: %s\r\n", k, v)
 		}
 	}
-	writeHeader("From", m.From)
+	writeHeader("From", formatAddressHeader(m.FromName, m.From))
 	writeHeader("To", strings.Join(m.To, ", "))
 	writeHeader("Cc", strings.Join(m.CC, ", "))
 	writeHeader("Subject", mime.QEncoding.Encode("utf-8", m.Subject))
@@ -104,6 +106,15 @@ func BuildMIME(m MIMEMessage) ([]byte, error) {
 	return buf.Bytes(), nil
 }
 
+func formatAddressHeader(name, address string) string {
+	address = strings.TrimSpace(address)
+	name = strings.TrimSpace(name)
+	if address == "" || name == "" || strings.EqualFold(name, address) {
+		return address
+	}
+	return (&netmail.Address{Name: name, Address: address}).String()
+}
+
 func textprotoMIMEHeader(values map[string]string) textproto.MIMEHeader {
 	h := textproto.MIMEHeader{}
 	for k, v := range values {

apps/api/internal/app/personal_handlers.go

@@ -878,7 +878,7 @@ func (a *App) applyInboundControls(ctx context.Context, messageID, mailboxID, fr
 	}
 	rows.Close()
 	msg := ruleMessage{ID: messageID, MailboxID: mailboxID, From: from, Subject: subject}
-	_ = a.db.QueryRowContext(ctx, `SELECT from_addr,to_addrs,subject,snippet,body_text FROM messages WHERE id=?`, messageID).Scan(&msg.From, &msg.To, &msg.Subject, &msg.Snippet, &msg.BodyText)
+	_ = a.db.QueryRowContext(ctx, `SELECT trim(from_addr || ' ' || COALESCE(from_name,'')),to_addrs,subject,snippet,body_text FROM messages WHERE id=?`, messageID).Scan(&msg.From, &msg.To, &msg.Subject, &msg.Snippet, &msg.BodyText)
 	for _, rule := range rules {
 		if !ruleMatches(rule, msg) {
 			continue
@@ -1128,7 +1128,7 @@ func (a *App) applyRuleToExistingMessages(ctx context.Context, userID, mailboxID
 		where += ` AND m.mailbox_id=?`
 		args = append(args, mailboxID)
 	}
-	rows, err := a.db.QueryContext(ctx, `SELECT m.id,m.mailbox_id,m.from_addr,m.to_addrs,m.subject,m.snippet,m.body_text FROM messages m JOIN mailboxes mb ON mb.id=m.mailbox_id WHERE `+where, args...)
+	rows, err := a.db.QueryContext(ctx, `SELECT m.id,m.mailbox_id,trim(m.from_addr || ' ' || COALESCE(m.from_name,'')),m.to_addrs,m.subject,m.snippet,m.body_text FROM messages m JOIN mailboxes mb ON mb.id=m.mailbox_id WHERE `+where, args...)
 	if err != nil {
 		return 0, err
 	}

apps/api/internal/app/types.go

@@ -79,6 +79,7 @@ type MailMessage struct {
 	MessageID      string       `json:"messageId"`
 	Subject        string       `json:"subject"`
 	From           string       `json:"from"`
+	FromName       string       `json:"fromName,omitempty"`
 	To             []string     `json:"to"`
 	CC             []string     `json:"cc"`
 	BCC            []string     `json:"bcc,omitempty"`

apps/web/src/lib/api-types.ts

@@ -8,7 +8,7 @@ export type MailFolder = { id: string; name: string; role: string; unreadCount:
 export type Attachment = { id: string; messageId: string; filename: string; contentType: string; sizeBytes: number; createdAt: string }
 export type MailLabel = { id: string; mailboxId?: string; name: string; color: string; messageCount?: number }
 export type MailMessage = {
-  id: string; mailboxId?: string; mailboxAddress?: string; ownerEmail?: string; recipientAddress?: string; folderId: string; folder: string; messageUid: string; messageId: string; subject: string; from: string; to: string[]; cc: string[]; bcc?: string[]; sentAt: string; receivedAt: string; snippet: string; bodyText?: string; bodyHtml?: string; isRead: boolean; isStarred: boolean; hasAttachments: boolean; sizeBytes: number; attachments?: Attachment[]
+  id: string; mailboxId?: string; mailboxAddress?: string; ownerEmail?: string; recipientAddress?: string; folderId: string; folder: string; messageUid: string; messageId: string; subject: string; from: string; fromName?: string; to: string[]; cc: string[]; bcc?: string[]; sentAt: string; receivedAt: string; snippet: string; bodyText?: string; bodyHtml?: string; isRead: boolean; isStarred: boolean; hasAttachments: boolean; sizeBytes: number; attachments?: Attachment[]
   labels?: MailLabel[]
 }
 export type DNSRecord = { type: string; name: string; value: string; ttl: number }

apps/web/src/pages/admin.tsx

@@ -430,7 +430,7 @@ function AdminMessagesSection({ mailboxes }: { mailboxes: MailboxType[] }) {
                   <div className="font-medium">{message.mailboxAddress || message.recipientAddress || "-"}</div>
                   {message.ownerEmail && <div className="text-xs text-muted-foreground">{message.ownerEmail}</div>}
                 </TableCell>
-                <TableCell className="max-w-[220px] truncate">{message.from}</TableCell>
+                <TableCell className="max-w-[220px] truncate" title={adminSenderTitle(message)}>{adminSenderDisplayName(message)}</TableCell>
                 <TableCell className="max-w-[220px] truncate">{message.recipientAddress || message.to.join(", ")}</TableCell>
                 <TableCell><Badge variant="secondary">{folderName(message.folder)}</Badge></TableCell>
                 <TableCell className="text-muted-foreground">{formatDate(message.receivedAt)}</TableCell>
@@ -771,7 +771,7 @@ function AdminMessageDialog({ message, loading, open, onOpenChange }: { message?
             <div className="grid gap-3 rounded-lg border p-4 text-sm md:grid-cols-2">
               <MessageMeta label="所属邮箱" value={message.mailboxAddress || message.recipientAddress || ""} />
               <MessageMeta label="所属用户" value={message.ownerEmail || ""} />
-              <MessageMeta label="发件人" value={message.from} />
+              <MessageMeta label="发件人" value={adminSenderTitle(message)} />
               <MessageMeta label="收件人" value={message.recipientAddress || message.to.join(", ")} />
               <MessageMeta label="文件夹" value={folderName(message.folder)} />
               <MessageMeta label="时间" value={formatDate(message.receivedAt)} />
@@ -810,6 +810,22 @@ function escapeHtml(value: string) {
   return value.replace(/[&<>"']/g, (char) => ({ "&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;", "'": "&#39;" })[char] || char)
 }
 
+function adminSenderDisplayName(message: MailMessage) {
+  const fromName = message.fromName?.trim()
+  if (fromName) return fromName
+  const text = message.from.trim()
+  const namedAddress = text.match(/^"?([^"<]+?)"?\s*<[^>]+>$/)
+  const name = namedAddress?.[1]?.trim()
+  if (name) return name
+  const address = text.match(/<([^>]+)>/)?.[1]?.trim() || text
+  return address.split("@")[0]?.trim() || text || "未知发件人"
+}
+
+function adminSenderTitle(message: MailMessage) {
+  const name = message.fromName?.trim()
+  return name ? `${name} <${message.from}>` : message.from
+}
+
 function Stat({ icon, label, value }: { icon: React.ReactNode; label: string; value: React.ReactNode }) {
   return <Card><CardContent className="flex items-center gap-4 p-5"><div className="grid h-10 w-10 place-items-center rounded-lg bg-muted text-foreground">{icon}</div><div><div className="text-2xl font-semibold tracking-tight">{value}</div><div className="text-xs text-muted-foreground">{label}</div></div></CardContent></Card>
 }

apps/web/src/pages/mail.tsx

@@ -272,8 +272,9 @@ export function MailPage() {
     if (newMessages.length === 0) return
 
     const first = newMessages[0]
+    const firstSender = senderDisplayName(first)
     const title = newMessages.length > 1 ? `收到 ${newMessages.length} 封新邮件` : `新邮件：${first.subject || "(无主题)"}`
-    const description = newMessages.length > 1 ? `${first.from} 等发来新邮件` : `${first.from}${first.snippet ? ` · ${first.snippet}` : ""}`
+    const description = newMessages.length > 1 ? `${firstSender} 等发来新邮件` : `${firstSender}${first.snippet ? ` · ${first.snippet}` : ""}`
     toast({ title, description })
     playIncomingMailSound(mailAudioContextRef)
     if ("Notification" in window && Notification.permission === "granted") {
@@ -671,7 +672,7 @@ export function MailPage() {
                               <Button variant="destructive" size="sm" onClick={() => confirmDeleteMessage(selected)}>删除</Button>
                             </div>
                           </div>
-                          <div className="text-sm text-muted-foreground"><span className="font-medium text-foreground">{selected.from}</span> 发给 {selected.to.join(", ")} · {formatDateTime(selected.receivedAt)}</div>
+                          <div className="text-sm text-muted-foreground"><span className="font-medium text-foreground" title={senderTitle(selected)}>{senderDisplayName(selected)}</span> 发给 {selected.to.join(", ")} · {formatDateTime(selected.receivedAt)}</div>
                           <MessageLabels
                             messageLabels={selected.labels || []}
                             availableLabels={labelItems}
@@ -963,9 +964,9 @@ function CompactMessageDetail({
                 </div>
                 <div className="flex items-start justify-between gap-4">
                   <div className="flex min-w-0 items-start gap-3">
-                    <Avatar className="size-10 rounded-full"><AvatarFallback className="bg-primary text-sm font-semibold text-primary-foreground">{accountInitial(selected.from)}</AvatarFallback></Avatar>
+                    <Avatar className="size-10 rounded-full"><AvatarFallback className="bg-primary text-sm font-semibold text-primary-foreground">{accountInitial(senderDisplayName(selected), selected.from)}</AvatarFallback></Avatar>
                     <div className="min-w-0 text-sm">
-                      <div className="truncate font-medium text-foreground">{selected.from}</div>
+                      <div className="truncate font-medium text-foreground" title={senderTitle(selected)}>{senderDisplayName(selected)}</div>
                       <div className="truncate text-muted-foreground">收件人 {selected.to.join(", ")}</div>
                     </div>
                   </div>
@@ -992,11 +993,12 @@ function CompactMessageDetail({
 
 function CompactMessageRow({ message, active, checked, onCheckedChange, onClick, onStar }: { message: MailMessage; active: boolean; checked: boolean; onCheckedChange: (checked: boolean) => void; onClick: () => void; onStar: () => void }) {
   const visibleLabels = (message.labels || []).slice(0, 2)
+  const senderName = senderDisplayName(message)
   return (
     <div onClick={onClick} className={cn("grid cursor-pointer grid-cols-[32px_28px_minmax(140px,240px)_minmax(0,1fr)_88px_36px] items-center gap-2 border-b px-4 py-2 text-sm transition-colors hover:bg-accent/50", active && "bg-accent", !message.isRead && "font-semibold")}>
       <Checkbox aria-label="选择邮件" checked={checked} onCheckedChange={(value) => onCheckedChange(value === true)} onClick={(event) => event.stopPropagation()} />
       <Mail className={cn("h-4 w-4", message.isRead ? "text-muted-foreground/70" : "fill-yellow-200 text-yellow-500")} />
-      <div className="truncate">{message.from}</div>
+      <div className="truncate" title={senderTitle(message)}>{senderName}</div>
       <div className="flex min-w-0 items-center gap-2">
         <span className="truncate font-medium">{message.subject}</span>
         <span className="min-w-0 truncate text-muted-foreground">{message.snippet}</span>
@@ -1118,6 +1120,27 @@ function accountInitial(name: string, email?: string) {
   return (first || "蓝").toUpperCase()
 }
 
+function senderDisplayName(message: MailMessage) {
+  const fromName = message.fromName?.trim()
+  if (fromName) return fromName
+  return displayNameFromAddress(message.from)
+}
+
+function displayNameFromAddress(value: string) {
+  const text = value.trim()
+  const namedAddress = text.match(/^"?([^"<]+?)"?\s*<[^>]+>$/)
+  const name = namedAddress?.[1]?.trim()
+  if (name) return name
+  const address = text.match(/<([^>]+)>/)?.[1]?.trim() || text
+  const localPart = address.split("@")[0]?.trim()
+  return localPart || text || "未知发件人"
+}
+
+function senderTitle(message: MailMessage) {
+  const name = message.fromName?.trim()
+  return name ? `${name} <${message.from}>` : message.from
+}
+
 function MessageRow({
   message,
   active,
@@ -1135,6 +1158,7 @@ function MessageRow({
 }) {
   const visibleLabels = (message.labels || []).slice(0, 2)
   const hiddenLabelCount = Math.max((message.labels?.length || 0) - visibleLabels.length, 0)
+  const senderName = senderDisplayName(message)
   return <div onClick={onClick} className={cn("cursor-pointer border-b p-4 transition-colors hover:bg-accent/50", active && "bg-accent", !message.isRead && "font-semibold")}>
     <div className="flex gap-3">
       <Checkbox
@@ -1146,7 +1170,7 @@ function MessageRow({
       />
       <div className="min-w-0 flex-1">
         <div className="mb-1 flex items-center justify-between gap-2">
-          <div className="min-w-0 truncate text-sm">{message.from}</div>
+          <div className="min-w-0 truncate text-sm" title={senderTitle(message)}>{senderName}</div>
           <div className="flex shrink-0 items-center gap-1">
             <Button
               type="button"
@@ -1452,7 +1476,7 @@ function withPrefix(subject: string, prefix: string) { return subject.toLowerCas
 function quoteMessage(message: MailMessage) {
   const body = message.bodyText || stripHtml(message.bodyHtml || message.snippet || "")
   const quote = body.split("\n").map((line) => `> ${line}`).join("\n")
-  return `\n\n----- 原始邮件 -----\nFrom: ${message.from}\nTo: ${message.to.join(", ")}\nDate: ${formatDateTime(message.receivedAt)}\nSubject: ${message.subject}\n\n${quote}`
+  return `\n\n----- 原始邮件 -----\nFrom: ${senderTitle(message)}\nTo: ${message.to.join(", ")}\nDate: ${formatDateTime(message.receivedAt)}\nSubject: ${message.subject}\n\n${quote}`
 }
 function stripHtml(html: string) { const div = document.createElement("div"); div.innerHTML = DOMPurify.sanitize(html); return div.textContent || div.innerText || "" }
 async function fileToAttachment(file: File) {