port question

[Tony Alfrey]

Bill Campbell wrote:

> 
> Some ISPs/broadband providers also restrict outgoing port 25
> traffic to their own servers, 

This is what comcast does to me.  I specifically told them "I am not 
using your SMTP server for outgoing mail".  They said "Yes, but we block 
all packets with Port 25 ID in the packet header".  This turned out to 
be a big hassle for our tenant who used a web hosting service and mail 
server that did *not* accept port 587.  We had to set her up with an 
outgoing mail server on earthlink (or comcast would have worked) so she 
could send mail, rather than using the smtp server on her web hosting 
service.

> and may restrict the Sender/From
> addresses to ones in their domain.  It this case it really helps
> to have a co-operative site that you can connect to on some port
> other than 25 that the ISP is not trapping if you want to send
> with other domains in the Sender/From address.  Think of this as
> a smart-host that will accept all mail from your system, and
> relay it to the Internet.

A big goal for "us" is to have one port configuration for the outgoing 
mail so that it works everywhere:  at home w/ comcast, or at a wireless 
hot spot with some unknown broadband service (around here, usually comcast).


> 
> Bill


-- 
Tony Alfrey
tonyalfrey at earthlink.net
"I'd Rather Be Sailing"