Thus spake Jerry Amundson on Thu, Dec 16, 2004 at 10:35:27AM CST
> > Same same.  All domains that use Postini's mail servers resolve all
> > their MX records to the same IP address, even though the mail server
> > fqdn is different in each case.  I don't know how they do load
> > balancing.
> 
> Not quite, as they vary the MX amongst domains. Here's a sampling...
> 
> Domain postini.com:
> Relay: postini.com.s8a1.psmtp.com, Priority: 100, Address: ::ffff:64.18.7.10
> Relay: postini.com.s8a2.psmtp.com, Priority: 200, Address: ::ffff:64.18.7.10
> Relay: postini.com.s8b1.psmtp.com, Priority: 300, Address: ::ffff:64.18.7.10
> Relay: postini.com.s8b2.psmtp.com, Priority: 400, Address: ::ffff:64.18.7.10
> Domain vicad.com:
> Relay: vicad.com.mail1.psmtp.com, Priority: 10, Address: ::ffff:64.18.4.10
> Relay: vicad.com.mail2.psmtp.com, Priority: 1000, Address: ::ffff:64.18.4.10
> Relay: vicad.com.mail3.psmtp.com, Priority: 1001, Address: ::ffff:64.18.4.10
> Relay: vicad.com.mail4.psmtp.com, Priority: 1002, Address: ::ffff:64.18.4.10
> Domain sjm.com:
> Relay: sjm.com.mail5.psmtp.com, Priority: 100, Address: ::ffff:64.18.5.10
> Relay: sjm.com.mail6.psmtp.com, Priority: 200, Address: ::ffff:64.18.5.10
> Relay: sjm.com.mail7.psmtp.com, Priority: 300, Address: ::ffff:64.18.5.10
> Relay: sjm.com.mail8.psmtp.com, Priority: 400, Address: ::ffff:64.18.5.10
> Domain emersonprocess.com:
> Relay: emersonprocess.com.s7a1.psmtp.com, Priority: 5, Address: 
> ::ffff:64.18.6.10
> Relay: emersonprocess.com.s7a2.psmtp.com, Priority: 6, Address: 
> ::ffff:64.18.6.10
> Relay: emersonprocess.com.s7b1.psmtp.com, Priority: 7, Address: 
> ::ffff:64.18.6.10
> Relay: emersonprocess.com.s7b2.psmtp.com, Priority: 8, Address: 
> ::ffff:64.18.6.10

OK, my error on this.  Sorry.  My eyes always key on the first and last
numbers in the quad, and I hadn't noticed the differences in the 3rd number,
which is unusual.  Is the problem showing up on all their server addresses,
or only this one?

-- 
Lindsay Haisley       | "Fighting against human |     PGP public key
FMP Computer Services |    creativity is like   |      available at
512-259-1190          |    trying to eradicate  | <http://pubkeys.fmp.com>
http://www.fmp.com    |        dandelions"      |
                      |      (Pamela Jones)     |


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