Expand description
Ensure every email carries a Message-ID MIME header.
Some clients omit the Message-ID header, which breaks threading and
de-duplication in downstream systems. This transformer inspects the
incoming email: if a Message-ID already exists it is preserved,
otherwise one is generated using the configured domain.
Structsยง
- Message
IdTransformer - Transformer that ensures every email has a
Message-IDMIME header.