Show HN: Milter in Rust to Add Headers https://ift.tt/WvhXCoS

Show HN: Milter in Rust to Add Headers Here's a milter in Rust that adds List-Unsubscribe headers. It creates a URL that has encoded email-from, rcpt-to and a HMAC SHA 256 verification hash using a shared secret key. Possibly it improves delivery of newsletters and transactional emails. https://ift.tt/TsfKoOY April 17, 2025 at 12:52AM