Blocking .exe attachments with postfix or amavisd-new and ISPConfig 3
If you use postfix and / or amavisd-new on the mail server, you can use the following recipes to block…
How to enable DKIM email signatures in amavisd-new and ISPConfig 3.0
NOTE: This post is about ISPConfig 3.0 and not 3.1 and newer. ISPConfig 3.1 and newer has DKIM support builtin,…
ISPConfig 3: How to send copys of incoming emails to other mailboxes
A copy of a incoming email can be sent to a second email address by adding a cc command to…
Setting up email routing to gmail / google apps via ISPConfig 3
The following guide describes the steps to add DNS records that route emails from a domain managed in ISPConfig 3…
Enhanced e-mail SPAM protection in ISPConfig 3
The command below enables a stricter SPAM handling for postfix on ISPConfig 3 servers. In Detail: Reject sender hostnames with…
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…
Fix for OpenSuSE error: postfix/master: fatal: 0.0.0.0:smtps: Servname not supported for ai_socktype
You might see the error: postfix/master[5309]: fatal: 0.0.0.0:smtps: Servname not supported for ai_socktype On a OpenSuSE server when you enable…
How to renew the SSL certificate for dovecot on Ubuntu Linux
To create new SSL certificates for the dovecot pop3 and imap server on Ubuntu, follow these steps: Make a backup…
How to disable spamfilter- and antivirus functions in ISPConfig 3
If you use a mailserver wil very low ram (< 500 MB) and a slow CPU then it might be…