[TriLUG] OT: ATT UVerse internet access

[bak]

On 3/31/11 2:47 PM, matt at noway2.thruhere.net wrote:\
> I am still fuzzy on this one....
> 
> If port 25 is blocked, wouldn't you still have a problem sending mail out
> or would you have to relay through your ISP's SMTP server?
> 
> And what about incoming messages, wouldn't they still attempt to com in on
> port 25 and wouldn't a lack of connection just be treated as if your MTA
> was down?

No, you totally nailed it. But I believe the situation Chris describes
is not "I'm running my own," but that he has to contact his company's
mail server, located Across the Internet, and is unable to talk to their
SMTP port because of AT&T's bonehead port filtering.

When using the submission port, once his mail is enqueued for delivery,
his company's mail server (which presumably has unfiltered business
class service) won't have any difficulty sending mail via the well-known
SMTP port to anyone.

--bak

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