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[Solved] Postfix: “queue file write error”

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…

Send all outgoing email trough one IP address in postfix

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

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 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 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…

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