How to enable port 587 (submission) in postfix
pSome internet access providers have port 25 disabled in their routers to prevent spam. If you run your own email…
How to renew the SSL certificate for dovecot on CentOS
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…
How to Enable or Disable Focused Inbox in Windows 10 Mail
Focuses inbox splits the inbox into two separate tabs. It keeps the most important emails in the focused inbox while…
How to Backup/Clear/Restore a SpamAssassin Bayes Database
Sometimes you might have to work with the Spamassin Bayes Token database. This is the database that is used by…
How to change the welcome email message text in ISPConfig 3
As of ISPConfig 3.0.4, the text of the welcome email message that is sent to new email accounts is stored…