one domain, multiple mail IP's?

[Robert Kropiewnicki]

> -----Original Message-----
> From: bind-users-bounce at isc.org [mailto:bind-users-bounce at isc.org]On
> Behalf Of Alan Murrell
> Sent: Wednesday, August 21, 2002 9:25 PM
> To: comp-protocols-dns-bind at isc.org
> Subject: one domain, multiple mail IP's?
>
>
>
> Hi There,
>
> I am almost positive this cannot be done but thought I'd ask before
> telling the Customer so :-)
>
> Our customer has the following mail/MX record setup:
>
> @      IN   MX   10   mail.domain.com
> mail   IN   A         192.168.1.1
>
> (Note: IP address and domain changed to private IP and "generic"
> domain name for security reasons).  He wants to keep the current IP
> address as "default", and have a second IP address, 10.1.1.1 (again,
> IP changed for security reasons) as a backup.  Unfortunately, I'm only
> a fill-in until a "real" sysadmin gets hired, and so whie I know a
> little bit about DNS, I am no wizard.  Is what the Customer requesting
> possible, or at least way too complicated to implement?
>
> I know it's possible to have multiple MX records, but I'm not sure
> that's what he's requesting.  Thank you, in advance, for your help.
>
> Alan Murrell <swasak at hotmail.com>
>
>

Alan,

I would assume that he's talking about a backup mail exchanger which
would then take the following format:

@	IN	MX	20	mail2.domain.com.
mail2	IN	A		10.1.1.1

Of course, this only works if there is a mail server setup to handle
backup MX duties for his domain at that IP address.

On another note, it is rather useless to obfuscate IP addresses and
domain names for what are to be public servers.  The only thing this
accomplishes is making it difficult (if not impossible) for people to
help you.  Please refrain from doing so in the future.  For more
information, see the following link:

http://homepages.tesco.net/~J.deBoynePollard/FGA/dont-obscure-your-dns-d
ata.html

Regards,

Robert Kropiewnicki
Network Administrator
StructuredWeb Inc.
Phone: 201-325-3146
robert.kropiewnicki at structuredweb.com