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Email sent from mail server to mail server on port 25 is unencrypted. It's in the mail exchange spec. The only way email is secure is if it never leaves your
by r-shirt 13y ago
Email sent from mail server to mail server on port 25 is unencrypted. It's in the mail exchange spec. The only way email is secure is if it never leaves your internal network, and that's because of the network architecture, not encryption (which might include VPNs).
- thrownaway2424 13y agoI don't imagine that hotmail or gmail move data from one server to another using SMTP. It's designed to exchange mail with external parties at arm's length. There are far more efficient ways to move data.