Olivier M. wrote:
> 
> Hi,
> 
> I'd like that qmail check if incoming mail has a valid sender
> domain : there are a lot of patches available on the qmail
> webpage : which one would you recommend to me?

You could use qmail-smtpd from the qmail-ldap patch. It checks for
an A or MX record of the envelope senders domain part. It also has
very nice logging and incorprates some more useful patches, eg.
Tarpitting and others. Heavy tested and stable.

> Are there some unwanted effects to reject mails using this
> kind of method ? thanks for your hints & a nice week to you!

None I know of.

-- 
Andre

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