SMTD-739 — Final message reporting mail/MIME header error
The mail or MIME header %1 was incorrect. The reason is printed in preceding SMTD-742 message. This message offers binding to the MIME structure path (%2) and the full header text (%4).
The %3 word is a reaction specified in the configuration for thi kind of RFC violation.
For further details, see SMTD-742(6) manual page.