Re: [exim] False negative when filtering incoming email.

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Szerző: Tor Slettnes
Dátum:  
Címzett: sam wun
CC: Exim-users
Tárgy: Re: [exim] False negative when filtering incoming email.
On Thu, 2004-10-21 at 09:15, sam wun wrote:
> I got the following email rejected.
> rejected HELO from [1.2.3.4]: syntactically invalid argument(s):
> ABC_12@???


First of all, that is not a "negative" in terms of blocking; it is
"positive" as it was, indeed, blocked.

Second, it may not be a "false" - no legitimate MTAs would present a
EHLO/HELO greeting like the one above. You are probably dealing with a
spammer (and not a very smart one at that).

You can set:
helo_verify_hosts = :
helo_try_verify_hosts = :

That way, HELO verification will not happen for any host.

Beware - you'll get what you ask for.

-tor