Author: Toralf Lund Date: To: Exim Mailing List Subject: Re: [Exim] localhost as SMTP server again: Dynamic IP adresses being
blocked
Christoph Kliemt wrote:
>Toralf Lund <toralf@???> writes:
>
>
>
>>There is of course a different, perhaps more serious, problem with using
>>localhost as SMTP server setting in the MUA (see previous thread): It
>>could mean that dynamically assigned IP addresses are listed in
>>Received, and some receiver's don't like that; they block all messages
>>from addresses in dynamic ranges, at least if they belong to a major
>>ISP.
>>
>>
>
>No. They are blocked by RBLs, not by mailheader.
>
> Yes, probably; my description was a bit inaccurate here.
I always thought that RBL checks would typically also consult addresses
in headers in some way, though, but perhaps I was wrong?
>
>
>>I'd be interested in hearing how other people address this issue. Is
>>there a way out of it at all, except from obtaining a fixed IP address
>>from the ISP, or send messages via their mail server by reconfiguring
>>the MUA e.g. after moving a machine from the office to an Internet
>>connection @ home?
>>
>>
>
>Our mailserver (fixed ip) does not accept eMails from DULs (knock on
>wood) since 60% to 80% SPAM come from DULs.
>
>So my advice is: get a fixed ip with correct DNS-entries, or use an
>"official" relay with "ESMTP AUTH" or "SMTP after POP".
>
>
