Using multiple domains

Mailtraq is most often used to route the email for a single domain, however Mailtraq can also be used to route mail for multiple domains.

Basic 'multi domain' configuration

Mailtraq will handle messages for the domain entered at 'Domain name' and any other domain that is entered in the dialog-box shown below titled "Domain Aliases and other machine names".

So Mailtraq will automatically accept mail for ann@this.com and bob@another.com without any further configuration.

Mailtraq's method of handling multiple domains is to treat them as simple aliases.  This means that, for example, mail for john@this.com and mail for john@another.com is all routed to the same mailbox john. This is the most common scenario and requires no further configuration.

If all usernames in Mailtraq are unique then again no further configuration is needed, but if you want to keep messages for the two 'johns' separate then you need to do the simple additional configuration described below.

Webmail and Multiple Domains

Mailtraq webmail allows you to control which domain is displayed.
There is more on this topic in Webmail - Domain Name Control

Additional 'multi domain' configuration

Mailtraq's default method of handling multiple domains is to treat them as simple aliases. To avoid 'name collisions' the usernames should be unique in Mailtraq, as mail for john@this.com and mail for john@another.com is all routed to the same mailbox john.

How to avoid 'name collisions'

You may need a way of keeping the mail separate: you may want mail to john@this.com and john@another.com to go to separate mailboxes.

Method

This solution can be extended to handle any number of users and domains.

Step 1.

Add the domains this.com and another.com to
Options | Server | Domain aliases and other machine names

Mailtraq will now accept mail for both domains

 

Step 2.

Create a User for each separate mailbox that you want. As you add a User a mailbox will be created

Configuration note: It would be nice if the mailbox-name could be the same as the email address, however mailbox names cannot contain @ signs. So we use a simple naming convention, for example: john-this  for the john mailbox in john@this.com and john-another for the john mailbox in john@another.com
You may find it convenient to use the Mail Group feature to group Users' mailboxes in separate Domains together in the Console for administrative purposes

In each mailbox, enter an alias with the full email address.
For example:

In the Mailbox Properties for: john-this     
at the Aliases tab enter: john@this.com

In the Mailbox Properties for: john-another
at the Aliases tab enter: john@another.com

Configuration Tip:

If you were to create a User and a mailbox called simply john it will receive a copy of emails for both mailboxes. This is often very useful.

Collecting mail

The John who works in the domain this.com sets his email client (for example, Outlook 2003) to collect his mail from Mailtraq from the mailbox called john-this.

The John who works in the domain another.com sets his email client to collect his mail from Mailtraq from the mailbox called john-another

Sending Mail

In ordinary clients (for example, Outlook) the Account settings control the From: Reply-to etc settings

In Mailtraq webmail, if allowed by the Administrator, the user can set a Mail Profile in Webmail | Options | Mail Settings to their desired Domain. This may also be set by the Administrator and then the privilege revoked to lock the setting.

This means that John who works in the domain another.com collects his mail from the Mailtraq mailbox called john-another and sends email as john@another.com

Read more about this topic here