Linux Mail Server Setup and Howto Guide

This article will show you how to copy incoming mail to another mail server using the blind carbon copy (BCC) feature in Postfix. This capability is useful for backup, archive or disaster recovery purposes.

Postfix can be configured to act as a backup mail server. A backup MX server accepts mail if the primary mail server goes down and will forward all mails in its queue if the primary mail server goes back online.

This article describes how to configure a vacation autoresponder in Postfix mail server so email senders can be informed when the recipient is not available.

This article will show you how to configure Postfix and Dovecot to handle multiple domains stored in MySQL. Postfix Admin is used to manage the domains, mailboxes and aliases in MySQL. See How to Install Postfix Admin to setup the MySQL database that will be used by Postfix and Dovecot.

Postfix Admin is a web based interface used to manage mailboxes, virtual domains and aliases. This article will show you how to install Postfix Admin to simplify management of mailboxes, domains and aliases.

The version of Postfix that comes with Red Hat Enterprise Linux 5 or CentOS 5 does not support MySQL lookups. You can build your own custom Postfix RPM or get a prebuilt RPM from the CentOS Plus repository. You can use the CentOS repository in RHEL since CentOS is binary compatible with RHEL. This article describes how to install Postfix with MySQL lookup table support from the CentOS Plus repository.

SMTP Authentication prevents unauthorized user from sending out spam mails. But some applications do not support SMTP Authentication. Example of these are web applications with mail sending features (Microsoft Office Sharepoint Server, PHP based applications, etc).

These are the collection of Postfix howtos available on this site.

Postfix does not support mailbox quota. But thanks to Anderson Nadal’s Postfix Virtual Delivery Agent (VDA) patches, it can. To use the Postfix VDA requires two things, first Postfix must be built with the VDA patches and second, virtual user accounts must be used. You can get the Postfix RPM with VDA patches here.

You can create a text file in Postfix containing an alias email and several destination emails. There are two ways to implement aliasing and mailing list in Postfix depending on how it is configured.