How to Debug Mail Server issues - Incoming Emails - Outgoing Emails - WebMail (Roundcube incoming/outgoing) Incoming emails =============== Log Files Postifx (smtp server): /var/log/maillog Log Files Dovecot (pop3/imap server): /var/log/dovecot.log /var/log/dovecot-info.log /var/log/dovecot-debug.log From shell start tail on the log file by using this command tail -f /var/log/maillog After you have set tail on the […]