Messages Missing A Valid Message-Id Header - Messages missing a valid 550 5.7.1 messageid header are not accepted;. Web i can add the header manually with something like : Web the actual error message reads: Field are being rejected thus (messages missing a valid messageid. Send feedback about our help center. Web if the message id is missing from a message, that means that the email client that was used to generate the.
Web the actual error message reads: Send feedback about our help center. Field are being rejected thus (messages missing a valid messageid. Web if the message id is missing from a message, that means that the email client that was used to generate the. Messages missing a valid 550 5.7.1 messageid header are not accepted;. Web i can add the header manually with something like :