Is your ISP blocking outgoing port 25?
jeroen at easyhosting.nl
Fri Jun 19 09:28:55 UTC 2009
1. Customers remember it more easily
2. Some ISP's also block 587 (hence 'SMTP ports' rather then 'SMTP port'
in my previous comment ;-)
Patrick W. Gilmore wrote:
> 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,
>> 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  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
>>> through some sort of lame proxy that connects you to your intended
>>> but strips the AUTH field out of the EHLO response from the remote
>>> submission server ...
>> Met vriendelijke groet,
>> Jeroen Wunnink,
>> EasyHosting B.V. Systeembeheerder
>> systeembeheer at easyhosting.nl
>> telefoon:+31 (035) 6285455 Postbus 48
>> fax: +31 (035) 6838242 3755 ZG Eemnes
Met vriendelijke groet,
EasyHosting B.V. Systeembeheerder
systeembeheer at easyhosting.nl
telefoon:+31 (035) 6285455 Postbus 48
fax: +31 (035) 6838242 3755 ZG Eemnes
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