我有一個帶有公共 dns 條目的電子郵件伺服器，可以正常發送和接收。

我正在嘗試將其作為 imap 帳戶添加到 Outlook，但它一直失敗。伺服器錯誤顯示

Oct 30 15:29:04 mail.example.local dovecot[17250]: imap-login: Disconnected (auth failed, 1 attempts in 4 secs): user=<user@example.local>, method=PLAIN, rip=12.123.456.789, lip=123.4.56.7, session=<yjdfyjfkugih>

Oct 30 15:29:08 mail.example.local auth[17491]: pam_unix(dovecot:auth): check pass; user unknown

cat /etc/pam.d/dovecot
#%PAM-1.0
auth       required     pam_nologin.so
auth       include      password-auth
account    include      password-auth
session    include      password-auth
auth       required     pam_unix.so nullok
account    required     pam_unix.so

`cat auth-system.conf.ext PAM authentication. Preferred nowadays by most systems. PAM is typically used with either userdb passwd or userdb static. REMEMBER: You’ll need /etc/pam.d/dovecot file created for PAM authentication to actually work. <doc/wiki/PasswordDatabase.PAM.txt> passdb { driver = pam

[session=yes] [setcred=yes] [failure_show_msg=yes] [max_requests=<n>]

[cache_key=<key>] [<service name>]

#args = dovecot }`

在遵循本指南http://xmodulo.com/enable-user-authentication-postfix-smtp-server-sasl.html之後，我已經解決了這個問題

它仍然沒有工作，但事實證明這是因為我的密碼有一個“£”導致了這個問題。

引用自：https://unix.stackexchange.com/questions/401438