On 02-Apr-2002 at 13:41:36 Philip Hazel wrote:
> On Tue, 2 Apr 2002, John Horne wrote:
>> tell, because they have 1 IP address each but 2 reverse lookup names
>> each. Exim seems to check the first name it receives but not the second.
>> E.g. (mailhub) mary.csd.plymouth.ac.uk => 141.163.66.134
>> 141.163.66.134 => mary.csd.plymouth.ac.uk
>> => mail.plymouth.ac.uk
>
> However, Exim is supposed to try a forward lookup of the HELO name if it
> can't match the reverse looked up name. I wonder why that didn't work?
> (That is, it should have looked up mail.plymouth.ac.uk and compared IP
> addresses.)
>
> Could you try "exim -d -bh 141.163.66.134" and feed it
> "helo mail.plymouth.ac.uk" please, and let me see the result?
>
Ah...well. I've now tried it on two machines and it seems to work fine
(sheepishly) :-) I'll try and dig through the logs to see where it was
occurring - the problem existed just before Easter and I've only got round
to mailing about it. However, I note that the 4.02 changelog has the entry:
2. helo_verify_hosts wasn't working when comparing host names.
perhaps that had something to do with it? I was still running 4.01 at the
time I think.
I'll let you know if I have any re-occurrance of the problem (what problem?).
Apologies for the hassle.
John.
------------------------------------------------------------------------
John Horne, University of Plymouth, UK Tel: +44 (0)1752 233914
E-mail: jhorne@???
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