Is your ISP blocking outgoing port 25?

Fri Jun 19 08:37:59 UTC 2009

Sent from my iPhone, please excuse any errors.

On Jun 19, 2009, at 8:53, Jeroen Wunnink <jeroen at easyhosting.nl> wrote:

> We just open port 2525 for customers from ISP's blocking official  
> SMTP ports so they can use their dedicated servers/domain mailservers.

Is there any reason you do not use port 587, SUBMIT?

-- TTFN,
patrick

> Lyndon Nerenberg wrote:
>> On Thu, 2009-06-18 at 16:14 -0400, Joe Provo wrote:
>>
>>> then you should be shifting your userbase to authenticated on the
>>> SUBMIT port [587] anyway...
>>>
>>
>> Except for those ISPs who choose to intercept port 587 as well.  
>> This is
>> a big problem with Rogers in Vancouver. They hijack port 587  
>> connections
>> through some sort of lame proxy that connects you to your intended  
>> host,
>> but strips the AUTH field out of the EHLO response from the remote
>> submission server ...
>>
>>
>>
>
> -- 
>
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>
> Jeroen Wunnink,
> EasyHosting B.V. Systeembeheerder
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