If we notice from the email logs that all the users in the server are getting “454 4.7.1 Relay access denied” error while sending to and receiving mails from external domains using all mail clients, we confirm that the issue is related to Postfix server. [ You don’t have to lose yo...
这限制了只有mynetworks参数中定义的本地网络中的客户端才能通过postfix转发邮件,其它客户端则不被允许,从而关闭了开放式中继(open relay)的功能。 Postfix有多个内置的限制条件,如上面的permit_mynetworks和reject_unauth_destination,但管理员也可以使用访问表(access map)来自定义限制条件。自定义访问表的条件通常使用che...
userid=extmail): Unknown MySQL serverhost'localhost.'(1)Dec1310:36:45 AY130902101739504f56Z postfix/smtpd[20113]: NOQUEUE: reject: RCPT from unknown[211.160.178.45]:4544.7.1<41808100@qq.com>: Relay access denied;from=<test@example.com>to=<418080@qq.com>proto=ESMTPhelo=<Jerry...
You should now be able to use different domains to access RoundCube webmail. Also you need to reload Postfix SMTP server and Dovecot IMAP server in order to let them pick up the new certificate. That’s all you need to do for Postfix and Dovecot to serve multiple domains. sudo systemctl ...