I am setting up data protection and am testing with some regular expressions to automatically SPX-encrypt mails containing certain data.
This works well sending to several mailaddresses (ie Gmail), but when sending the same mail to a Microsoft (Live / Hotmail / Outlook.com) account, the mail gets bounced. In mailmanager it is listed as Bounced: SPX Encrypted.
Looks like UTM is is failing to comply to RFC 5322.
Anyone else also seeing this?
The bounced mail contains te following:
This message was created automatically by the SMTP relay on *****
A message that you sent could not be delivered to all of its recipients.
The following address(es) failed:
***@***.***
SMTP error from remote mail server after end of data:
host 82a9ff885ab5ad488d715bf4883da6.pamx1.hotmail.com [65.54.188.109]:
550 5.7.0 (BAY004-PAMC2F9) Message could not be delivered. Please ensure the message is RFC 5322 compliant.
------ This is a copy of the message, including all the headers. ------
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