Cogeco.ca blocking incoming port 25 smtp

William Park opengeometry-FFYn/CNdgSA at public.gmane.org
Sat Dec 20 00:32:57 UTC 2003


On Fri, Dec 19, 2003 at 09:23:39AM -0500, pegasoft-iRg7kjdsKiH3fQ9qLvQP4Q at public.gmane.org wrote:
> Hi All,
> 
> Has anyone else notice if cogeco has begun blocking incoming port 25?
> I can send email from my mail server but I'm not receiving anything
> for the last two days...
> 
> Thanks,

They blocked dynamic IP when I tried to send to <cogeco.ca>.  So, I
relayed through my ISP.  Since I haven't received any reject message, I
assume it's in queue somewhere.

Hmm,
    $ telnet cogeco.ca 25
    554 5.7.1 zues2.cgocable.net Connection not authorized

    $ telnet zues2.cgocable.net 25
    220 zues2.cgocable.net ESMTP service

    $ host -t mx cogeco.ca
    cogeco.ca mail is handled by 0 MX.cogeco.ca.

Someone goofed.  Tell them to fix typo in their DNS zonefile.

-- 
William Park, Open Geometry Consulting, <opengeometry-FFYn/CNdgSA at public.gmane.org>
Linux solution for data management and processing. 
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