before queue TLS info available?

[k***@gmail.com]

I'd like to use postfix as a way to accept TLS connections for an aging custom smtp server.

It looks like it might be easy to just tell postfix to use the running old server as a before-queue filter.

Assuming I'm right, I'd like to old server to know somehow if a particular message was transmitted via TLS or not. Can I do this somehow, maybe in a header the old mail server could look for?

[d***@gmail.com]

Post by k***@gmail.com
I'd like to use postfix as a way to accept TLS connections for an aging custom smtp server.
It looks like it might be easy to just tell postfix to use the running old server as a before-queue filter.
Assuming I'm right, I'd like to old server to know somehow if a particular message was transmitted via TLS or not. Can I do this somehow, maybe in a header the old mail server could look for?

Hi

In the Received headers of the mails you should see SMTPS or ESMTPS instead of SMTP or ESMTP if encryption was used.

Regards
Victor