Sending to multiple email servers

[Howard Yuan]

>>> ugob at CAMO-ROUTE.COM 4/2/2004 15:55:28 >>>
> -----Message d'origine-----
> De : Howard Yuan [mailto:Howard.Yuan at VALENCE.COM] 
> Envoyé : 2 avril, 2004 18:52
> À : MAILSCANNER at JISCMAIL.AC.UK 
> Objet : Sending to multiple email servers
> 
> 
> Hello all.
> 
> I currently have my MailScanner set up to receive mail for anything
> going to mydomain.com. Its configured to receive the email, 
> scan it for
> viruses and spam, then send it off to my main mailserver, which
> distributes the mail to my users. I have three mailservers 
> (in case one
> goes down). I was wondering if its possible to set up the MailScanner
> to...well, what I'm worried about is if my main mailserver goes down.
> Then MailScanner will have no where to send the email. Normally, a
> mailserver would scan through the mx records and go to the next server
> listed to try to send the email before it sets it aside for retry. I
> would like MailScanner to do something equivalent, where it'll try to
> send it to one mailserver, if that fails, to try another one, 
> and so on
> and so forth before it gives up. Any ideas? Thanx in advance.

The way to do this is to use MX records.

You set your main MailScanner server as primary MX and another server as backup MX.

If the primary MX is down, mail is automatically redirected to your backup MX.

What I don't know is how to configure to make the backup MX send mail back to the primary for processing...

Ugo
*-----

Hai, thats how our mail servers are originally set up. But now with a mailscanner machine, I'd like it to do the same thing. What I have planned for the company is to put in two MailScanner machines (in case the primary one goes down for some strange reason), then I'll have a backup. But then I want the MailScanner machines to be able to go down a list or so. I know there are some settings where you can put in a filename which contains a list of servers...but thats for MailScanner. I guess what I'm trying to do would probably be a setting in Postfix, right?

Howard