Re: Is your ISP blocking outgoing port 25?

["Patrick W. Gilmore" <patrick () ianai net>]

Sent from my iPhone, please excuse any errors.


On Jun 19, 2009, at 8:53, Jeroen Wunnink <jeroen () 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 ...
>
> --
>
> Met vriendelijke groet,
>
> Jeroen Wunnink,
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