iRedMail is a free, open source mail server solution for Linux/BSD, provides services POP3/IMAP/SMTP, anti-spam, anti-virus, etc.

It is super easy to set up (How To Install iRedMail On Ubuntu 12.04 x64). However, it is not that easy to use and configure.

Although the functioanlity behind iRedMail is truly full-scaled, you cannot achieve all features from its admin portal. Instead, you need to do some manual configuration. And this is the “paid” version comes from – a pro admin portal of iRedMail that helps people manage the mailing service.

Again, the paid version is just for the admin portal, NOT the mailing service features themselves. iRedMail is still the best open-sourced mailing service I ever used before.

The following is about “How to configure the Email Forwarding“.

Firstly, from the pro admin portal, you can easily do that.

iRedMail Admin Pro - Email Forwarding

Secondly, if you are uisng MySQL backend, create new record in table “vmail.alias“. for example:

mysql> UPDATE alias SET goto='forward@external.com,forward@another_external.com' WHERE username='user@your_domain.com';

If you are using OpenLDAP backend, you can add attribute “mailForwardingAddress” in user object.

  • Log into phpLDAPadmin.
  • Drill down to the email address you want to add email forwarding.
  • Click Add new attribute to add a new attribute.
  • Select mailForwardingAddress from the dropdown and enter the email address you would like to forward emails.
  • Click Update Object at the bottom of the page.

You can add muktiple values to the attribute mailForwardingAddress. If you want to save a copy when forwarding, just add the orginial email address to the attribute mailForwardingAddress.

Peace!

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