Re: Secondary mail server
- From: Antoine EMERIT <gnagnagna@xxxxxxxxxxxxxxxxx>
- Date: 11 Feb 2006 23:30:44 GMT
Mike Ruskai <BUTthannydI@xxxxxxxxxxxxxxxxxxxxxxxxx> écrivait
news:m38hu19gjb48nrkl65tl4q5dlufpnbackr@xxxxxxx:
I'd like to set up a separate machine as the backup mail server for
the domain, where the primary would use fetchmail to retrieve any mail
caught by the secondary.
I was wondering if there are any canned or semi-canned ways to do
this, since I'd like to avoid having to duplicate the vpopmail
configuration (and updating it to match the primary server).
Ideally, it would be something that would act something like a caching
mail server for the domain. That is, it accepts all messages for the
configured domain, then tries to deliver them all to the primary like
a normal mail queue, leaving the primary to deal with the validity of
destination addresses.
That's exactly as mail servers runs :
- the domain DNS set two MX record with differents preferences (the
number before the hostname in the dns zone file).
then
- "outsider" mail client or smtp relay send mail for your domain to the
lowest preference server, and if this one don't answer the mail is send
to the lowest available mail server
- your mail servers check themselves if they are the lowest preferenced
one. If none they try to send the mail to the lowest one.
So, for the cache mail server, you "just" need to set it to accept mail
for the domain and set dns zone with a upper preference than the
"primary" mail server.
You may decide to install a "simple" postfix or exim mail server for the
second one.
Regards
.
- References:
- Secondary mail server
- From: Mike Ruskai
- Secondary mail server
- Prev by Date: Re: DNS and internal routing
- Next by Date: Re: DNS and internal routing
- Previous by thread: Re: Secondary mail server
- Next by thread: Multicast server software
- Index(es):
Relevant Pages
|
