Re: email rejection by HP mail servers (was Questions from Pat St. Laurent @ HP)

From: Colin Butcher (colin_DOT.butcher_AT_at_xdelta_DOT.co_DOT.uk)
Date: 07/15/03 

Date: Tue, 15 Jul 2003 12:15:31 GMT

I've been having similar problems for the past few weeks. My ISP through
whom I connect with broadband (cable) is BlueYonder (Telewest) in the UK.

As far as I can establish the issue is with HPs inbound mail servers
rejecting mail from certain ISPs (based on IP address range) due to a
blacklist that HP subscribe to (automatically?). The end result is
intermittent blocking of e-mail and it being returned with "error 550 -
relaying denied".

My ISP claims that it's not their problem - it's the people using them who
have open mail relays who are the problem. They do plan to eventually
introduce authentication for their SMTP outbound mail servers - which they
think should help.

However, I've found that sending to a person's Compaq (or digital) e-mail
address will usually succeed, even if the hp e-mail address is rejected.

It'll presumably all get worse once the e-mail systems have been
homogenised, but right now this is one small thing to be thankful to Compaq
for...

I do have a name inside HP's network support group in Boeblingen who seems
to take this issue seriously, but I'm loath to post it here. I'll pass it on
to Sue for her to forward internally as appropriate.

-----------------------------------------------------------------
Hope this helps, Colin.
colin DOT butcher AT xdelta DOT co DOT uk
Systems Archaeologist - Investigation & troubleshooting of older systems and
networks.

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