Getmail is a powerful email retrieval program for Ubuntu Linux that can be used to download and store emails from…

Rspamd is a widely used email and spam filtering solution. It consists of a set of rule-based filters, blacklists, greylisting,…

Make a backup of the old key and certificate file mv /etc/ssl/certs/dovecot.pem /etc/ssl/certs/dovecot.pem.old mv /etc/ssl/private/dovecot.key /etc/ssl/private/dovecot.key.old Create the new SSL…

More and more internet access providers are closing port 25 to reduce spam except for connections to their own mail…

There are three ways that an ISPConfig email user can use to change his email password (when he has no…

Gmail is undoubtedly one of the most popular web-based email services today. One of the key factors that make Gmail…

Postfix provides several shell programs to manage the mail queue. These are: postsuper postqueue mailq In this tutorial, I will…

Some internet access providers have port 25 disabled in their routers to prevent spam. If you run your own email…

If you get an error like: Apr 15 12:41:03 webb4 postfix/sendmail[11234]: fatal: web1_user(12967): queue file write error in your mail…

When a server has more than one IP address, then postfix will use all IP addresses randomly to send out…