I am trying to set up a Free email forwarding service for my clients wishing to use my domain without having to host with me or having to have a pop account. However, I want to be able to force an ad signiture into the mail like this:

Get your FREE email at mydomain.com

Can anyone tell me of a mail server that allows you to do this?

Or, does anyone know of a way I can customize an existing mail server?

I'd imagine it would be configured in the administration options of your mail server..... But you'd have to ask around and research..... Better wait for responses.

I seem to recall exim having a way to do this, however I don't remember the exact setup. You'll probably have to do some digging on exim.org.

Exim can do the job, we add extra headers to all outgoing mail, so I am sure you can add text to the body of the message.

Would I have to modify the code to do this or can I do it in the settings or preferences? What I want to do is insert an ad pointing to my site in the footer (signiture?) that the user can't delete.

Is this something that would appear when they created an email? Actually, I am not so interested in web-based email as I am email forwarding. I just want to forward mail for users who are NOT hosted users but just want to use my domain in their email addresses.

In other words, I give them free email forwarding, they give me a media to advertise in.

Thanks for the help!

As far as I can tell you would add it to the config file for exim.

I got a reply from the Exim site today. He says:

"It is an extremely bad idea - MTAs should never, ever fiddle with the content of messages. You can do it with a transport filter, but it will cost you serious amounts of additional processing."

Not quite sure where that leaves me.

Ron