Gmailify is not available for this provider
Whilst trying to connect Gmail to a POP3/IMAP Virtualmin system, you might encounter the following issue: “Gmailify is not available for this provider.” The issue
How to gain control over a postfix server by deleting all messages in the queue at once
Scenario If your postfix server is running away and it’s chaos because there are 1000s or millions of messages in the queue, your only recourse
How to view the Dovecot logfile because the service is not starting
About Dovecot Service Not Starting At times the Dovecot service may stop for some or another reason. This article addresses the situation whereby the service
The mail system [email protected] (expanded from [email protected]): can’t create user output file
When trying to send email to a Dovecot user, you get the following message: This is the mail system at host hostname.localdomain. I’m sorry to
Postfix suddently stops logging on CentOS – rsyslog versus journalctl
Issue Encountered Postfix works but doesn’t seem to log anymore. tail -f /var/log/maillog shows nothing and nor does /var/log/mail.log. Sadly, this used to work. Eventually
How to delete messages from the Postfix queue using the command line
Background There are a multitude of methods that can be used to delete messages from the Postfix queue. This article summarizes a couple of them.
How to count / determine the exact amount of messages in a Postfix mail queue
How do I count the message in Postfix’s mail queue? I’m not really interested in all these posts on the internet that outputs the queue.
How does SPF and DKIM work?
SPF SPF records can be added easily by just adding a new TXT record to DNS. But how does the syntax for an SPF record
Why does it take exactly two minutes for my email to get delivered to Gmail’s server?
Quick answer: Greylisting. Long answer: Read this: https://forum.netcup.de/anwendung/sonstige-anwendungen/p82197-warum-ist-sendmail-so-langsam-php-mail/ or summarised: Greylisting: Greylisting refers to a form of spam control for emails, in which the first
dovecot: pop3-login: Fatal: Dovecot version mismatch: Master is v2.3.2, pop3-login is v2.3.2.1 (if you don’t care, set version_ignore=yes)
Whilst running a Dovecot system, you might experience the following error in your log file: Jul 13 09:25:02 hostname dovecot: pop3-login: Fatal: Dovecot version mismatch: