>This past weekend we were placed on AOLs list of open relay mail
>servers. Hence we could no longer send to AOL email addresses. I
>increased the security on the iMail server to NO Mail Relay.
Good; that or "Relay for Addresses" will close the open relay.
>Everything is working fine when folks are in the office. However, when
>they are on
>the road dialing into AT&Ts global dialer network or one any other
>network they can no longer use or SMTP server.
That's because you've set up IMail NOT to allow relaying. So they can't relay.
In order for them to relay mail through your server, you'll need to set
them up to use SMTP AUTH.
>In the past they have always been able to use our server and AT&T
>contends, and I believe,
>that nothing has changed in their network. AT&T does not used SMTP port
>blocking and this is why we chose them because I did not want my road
>warriors to have to change SMTP server addresses.
AT&T lies. They DO block port 25. It sounds like either you have lucked
out and are on routes that don't block, or perhaps they now are
sophisticated enough to only block on certain accounts.
-Scott
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