Show HN: Milter in Rust to Add Headers(github.com)
github.com
Show HN: Milter in Rust to Add Headers
https://github.com/arduent/lu-milter
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.
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