[TriLUG] OT: ATT UVerse internet access

[Chris Merrill]

On 3/30/2011 3:29 PM, bak wrote:
> I got around this by using the 'submission' port. Modern UNIX MTAs have
> this turned on by default. It is basically just
> SMTP-with-authentication-by-default; no relaying. The well-known port is
> 587. See RFC2476.

I was not aware of this port.  But I'm a little confused about the "no relaying"
part.  If I am using it to send email to our customers, is that not relaying?
If not, then I don't understand the distinction. I thought contacting an SMTP
server to send e-mail to a user on some other server IS relaying ???


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Chris Merrill                           |  Web Performance, Inc.
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