Sendmail woes (domain resolving)

Marc UBM Bocklet ubm at
Tue May 27 15:15:29 PDT 2003

Hello everyone!

I'm not 100% sure if this belongs here, as it is primarily a sendmail
configuration problem. 

Sendmail blocks incoming mail delivered to it by fetchmail, if it's
unable to resolve the domain the mail is sent from. For example:

sendmail[2424]: h4RKlrp0002424: ruleset=check_mail,
arg1=<odxo9zpm3nig at>, relay=FDO_GSD at localhost [],
reject=451 4.1.8 Domain of sender address odxo9zpm3nig at does
not resolve

I tried to add the options 


to the and the file, but it didn't work.
I'm pretty sure that I'm doing something wrong, but I'm not sure what it

The reason that I want sendmail to deliver such mails is that fetchmail
will not fetch any additional messages from an account once a message
has been rejected by sendmail.

How can I get to do sendmail what I want it to do? I'm pretty sure that
I'm missing something obvious.


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