Author: Christoph Kliemt Date: To: exim-users Subject: Re: [Exim] localhost as SMTP server again: Dynamic IP adresses
being blocked
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.
> 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".
