http://tonyhack.familyds.net/wordpress/?s=postfix
dovecot 設定檔異常排除
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protocols = imap pop3
(啟用 IMAP POP3)
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disable_plaintext_auth = no —> 取消明碼傳輸
(maillog出現：pop3-login: Disconnected (tried to use disabled plaintext auth解決方式 )
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mail_location = mbox:~/mail:INBOX=/var/mail/%u
(maillog出現：Initialization failed: mail_location not set and autodetection failed: Mail storage)
錯誤log
May 11 10:58:54 dns dovecot: pop3(ben): Error: chown(/home/ben/mail/.imap/INBOX, -1, 12(mail)) failed: Operation not permitted (egid=500(ben), group based on /var/mail/ben)
May 11 10:58:54 dns dovecot: pop3(ben): Error: mkdir(/home/ben/mail/.imap/INBOX) failed: Operation not permitted
解決方式
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mkdir -p /etc/skel/mail/.imap/INBOX
利用家目錄範本解決,以後新增使用者就會自行建立
查詢信件問題可以用tcpdump來檢查問題
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[root@bk-mail postfix]# tcpdump | grep 61.220.15.209
tcpdump: verbose output suppressed, use -v or -vv for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes
15:47:50.106209 IP google-public-dns-a.google.com.domain > 192.168.1.20.41450: 24712 1/0/0 A 61.220.15.209 (59)
15:48:15.394267 IP google-public-dns-a.google.com.domain > 192.168.1.20.33003: 33594 1/0/0 A 61.220.15.209 (59)
^[[A^[[A^X^[[A^C995 packets captured
996 packets received by filter
0 packets dropped by kernel
或是tail來觀察mail流量
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[root@bk-mail etc]# tail -f /var/log/maillog
Mar 23 15:58:08 localhost postfix/smtp[16238]: 5036D2E0DEA: to=