Charles wrote about a message rejected by Gmail with a 550 "Messages missing a valid messageId header are not accepted" error.
I assume/imagine this is more anti-spam, and this thread supports that: https://support.google.com/mail/thread/173900861/message-could-not-be-delivered-due-to-missing-valid-messageid-header?hl=en This is goodness, overall: the days when anyone could spoof email from anyone else are on their way out, finally. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
