In our area Comcast does allow port 25 access to third party
mail servers.
But if they see a lot of preceived spam traffic on your
circuit they will
block port 25 on you.
We see this from a lot of access providers. We have people
use port 587 to
solve the issue.
Chuck Schick
Warp 8, Inc.
(303)-421-5140
www.warp8.com
-----Original Message-----
From: Imail_Forum-owner list.ipswitch.com
[mailto:Imail_Forum-ownerlist.ipswitch.com] On
Behalf Of Robert M. Perez
Sent: Wednesday, March 12, 2008 11:14 AM
To: Imail_Forumlist.ipswitch.com
Subject: RE: [IMail Forum] Comcast Issue
I don't think comcast supports port25 anymore.
-----Original Message-----
From: Imail_Forum-ownerlist.ipswitch.com
[mailto:Imail_Forum-ownerlist.ipswitch.com] On
Behalf Of Imail Admin
Sent: Wednesday, March 12, 2008 1:01 PM
To: Imail_Forumlist.ipswitch.com
Subject: Re: [IMail Forum] Comcast Issue
We had a client who uses Comcast and suddenly found one day
that all
outgoing mail was blocked. Comcast swore it wasn't them but
I tested
everything from the desktop PCs to the router and found that
mail made it to
Comcast but never made it to us. One day, after a month or
so, the problem
went away. Moral of the story: Comcast can do a lot of
weird stuff without
even knowing that they are doing it. It is quite possible
that they are
blocking your client's messages with attachments and they
don't even realize
it.
Ben
----- Original Message -----
From: "Steve Hyer" <sjhigdsolutions.com>
To: <Imail_Forumlist.ipswitch.com>
Sent: Wednesday, March 12, 2008 7:44 AM
Subject: [IMail Forum] Comcast Issue
>I have a client who uses comcast as his SMTP and he
tried to send to a
>domain on my mail server that I host and when he sends
Email with any
>attachments, they do not reach our server. Has anyone
else experienced
>anything like this?
>
> Thanks,
> SJH
>
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