OT: Comcast permanent block on port 25

Seann Clark nombrandue at tsukinokage.net
Fri Dec 19 17:56:34 UTC 2008


Dennis Gilmore wrote:
> On Friday 19 December 2008 11:17:10 am Phil Meyer wrote:
>   
>> Comcast, in their infinite wisdom, has begun to block all inbound port
>> 25 connections at my location.
>>     
> AFAIK at least in the area i'm in they have always blocked port 25. While it 
> sucks  its certainly common practice amongst ISP's all over the world.
>
> Dennis
>
>   
Comcast and Cox both do this, it makes sense. Makes it a pain when you 
host a legit server, but there are ways around it. Using the ISP to 
forward through and to, going DynDNS (like I am doing) and going to a 
non-standard port (It actually works VERY well) or going business 
service level (which drops blocks period on the communication line, at 
least for Cox)


Comcast has been doing this off and on since 2000 (Google searches 
result in a lot of complaints about this action over the years)


Just my 2cents and exp on this...


~Seann
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