email-threading

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jcsanyi / milter-autoref

A Postfix milter that appends the current message's Message-ID value to the References header for outgoing messages - fixing email threading that's broken by mail relays that rewrite the Message-ID header (such as AWS SES).

email postfix smtp aws-ses milter email-threading

Updated Apr 28, 2026
Python

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email-threading

Here is 1 public repository matching this topic...

jcsanyi / milter-autoref

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