SMTP and Port 25

Hello,

We have many applications in Delphi 6 and 7 and when sending E-Mail, we use
Indy's SMTP component. Lately we have had to unblocked port 25 on the
Exchange server in order to make the applications work.
But now, a security consultant is telling us that Port 25 needs to be
blocked again.

Can anyone give me a solution that would be relatively easy to implement on
so many applications.

Thank you,

H. Dumas


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