troubleshooting Question

Encryption for e-mail local delivery

Avatar of papa kota
papa kota asked on
Email Servers
1 Comment1 Solution126 ViewsLast Modified:
Hello!

I understand well what happens when SMTP server, say Postfix contacts remote SMTP server to send or receive mail. The connection could (and should) be encrypted, certain ports must be used and the certificate must be valid and accepted by all parties.
But when it comes to the local e-mail delivery for me it's a grey area. Ok, let's say if we're talking about receiving mail and Postfix already got it from the remote server. Then we have MDA (like Courier) that takes the mail from Postfix and gives it to a MUA (like Thunderbird Mail, for example). I'm talking about one physical machine and one user session. What the purpose of the encryption if it all happens inside and no third party could be present? And if it's the case of the same computer and the same user, then does the validity of the cert play any role for e-mail delivery process from Postfix via Courier to Thunderbird Mail?
ASKER CERTIFIED SOLUTION
ArneLovius

Our community of experts have been thoroughly vetted for their expertise and industry experience.

Join our community to see this answer!
Unlock 1 Answer and 1 Comment.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 1 Comment.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros