[Lilux-help] e-mail problems using Coditel-cable ISP

Eric Dondelinger aim at vis.ethz.ch
Fri May 28 08:12:07 CEST 2004


Hi,

On 28 May 2004, Patrick LEMMERS wrote:

> I can confirm, for the last few days Coditel has been blocking outgoing
> connection to port 25 to ANY machine !!!

Ouch? Even their own mailserver?!? If that's the case, somebody
royally screwed up...

> Since this morning they are at least allowing connections to their
> official  smtp relay (smtp.coditel.net) ...... Well done guys !!!

Hmm... looks like a sensible anti-virus-spreading and anti-spamming-
from-their-own-network technique to me.

> It looks like they are trying to force their users to use only their
> mail server for outgoing mail .... :-(

Yup, and as a SysOp, I can feel their pain. IMHO they're better
off this way, dealing with the wrath of a very few clued customers,
instead of dealing with thousands of abuse messages because of
viruses and/or spam.
Depending on their implementation, they possibly could adjust
filter settings based on authentication, so maybe they could
offer "100% free-as-in-speech" access to the 'net to a select
few people. If you can guarantee them you'll never catch an
MS Windows-based virus, maybe they'll let you have that setting ;-)

I do agree that they should inform their customers about such
measures, and they'll have to guarantee excellent availability
on their mailserver.

Greetings, Eric




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