Posted by Jerry Stuckle on 09/17/07 20:20

Sanders Kaufman wrote:
> Jerry Stuckle wrote:
>
>> You are not relaying them, then. You are acting as their mail MTA.
>
> That's what MTA's do - they relay mail.
> You can't be an MTA without relaying mail.
> If you do - you're a POP.
>
>> And NorTel's intranet servers are not publicly available. Nor are
>> GTE's. I don't know about your clients.
>
> That depends on your defintion of "publicly available".

MTA's are capable of relaying. But if they are configured correctly
they do not, except to intranets. Spammers love those which are
configured as open relays. They have lists of them all over the world.

And POP refers to Post Office Protocol - a protocol for RETRIEVING
messages. POP servers by themselves are not capable of receiving email
using the SMTP protocol (the one used for sending mail on the internet).
You need an MTA to receive the email and deliver it to the POP server.


--
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Remove the "x" from my email address
Jerry Stuckle
JDS Computer Training Corp.
jstucklex@attglobal.net
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