Expand description
Delivery Status Notification (RFC 3464) formatting. RFC 3464 Delivery Status Notification (DSN) builder.
Wraps mailrs-mail-builder’s canonical MessageBuilder so the
multipart/report envelope, header folding, encoded-word
handling, and boundary collision-scan are all shared with the
rest of the outbound stack. The DSN-specific message/delivery- status machine-readable part is constructed inline (RFC 3464
§2 grammar — pure ASCII key/value pairs).
Functions§
- format_
dsn - Format a DSN (Delivery Status Notification) bounce message per
RFC 3464. The returned message uses CRLF line endings (RFC 5322
§2.1) and
multipart/report; report-type=delivery-status.