Multi Server and mail (MX) setup.

[Linfosys]

We've setup the multi server for two servers. DNS and secondary DNS are working fine.

But now the question:
We like the servers to accept eachothers domain, so they can be eachothers backup MX. Is that possible ? Or do I need to setup a third servers as mailserver only ?

 

[nobaloney]

Complete manual configuration; DirectAdmin isn't set up for this.

You can create a system for duplicating users' email setup on the first machine on the second, but you're responsible for keeping it updated and making sure users get their mails and spammers don't cause you to put out a lot of backscatter and other undeliverable email spam.

Jeff

 

[ranz]

There are some systems which do secondary MX - but you'll have to write some API scripts to automate the population and removal of domains. The one I've seen is Webmin - it has an API and interfaces with Sendmail.

Directadmin also has an API and this could be used to send hooks out to the Webmin server.

More info on DirectAdmin's API is found here:
http://www.directadmin.com/api.html

 

[nobaloney]

I'm one of those guys that believes backup MX (really a better name for it) isn't worth the trouble unless you keep the list of approved recipients up-to-date and refuse email for everyone not on the list.

This means all users, including username email, virtual email addresses, forwards, vacation-responders, auto-responders, aliases, mailing lists, etc.

Jeff