Feature request: To make it possible to see if an Email Was Received Using TLS Encryption?

Issue #72 wontfix
created an issue

To make it possible to see if an Email Was Transmitted Using TLS Encryption? To make it possible to see in every email?

I am talking about the sender’s email or WebMail server talks to the recipient’s inbound email server and transmits the message to them over TLS secured channel or not.

This type of information is now available receiving in

gmail example: (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);


hotmail example: Received: from myIredmailServer ([46.101.xxx.xxx]) by BAY004-MC3F32.hotmail.com over TLS secured channel with Microsoft SMTPSVC(7.5.7601.23143);

It would be a great feature in iredmail.

Comments (1)

  1. Zhang Huangbin repo owner

    With Postfix settings below, it will log TLS transition info in log file:

    smtp_tls_loglevel = 1
    smtpd_tls_loglevel = 1

    To add related mail header, please set:

    smtpd_tls_received_header = yes
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