Recent content by dundee

My bad, the problem was with passing additional headers as headers to mail PHP function. It should be passed to body. See Error with PHP mail(): Multiple or malformed newlines found in additional_header

Just verified, that the message can be send through other smtp mailer (python smtplib) but fails with plesk-sendmail.

Same here. Looks like plesk-sendmail is now not able to parse multi-part message correctly. It was working fine few days ago.