Under 8.1xx using smtp relay as part of the smtp proxy in transparent mode worked fine. Now nothing is sent and there aren't any entries in the live view indicating a failure or reason for failure.
as mentioned in the other thread: All messages get rejected by the SMTP proxy with the message "451 Temporary local problem - please try later". So this will probably affect your Outlook too.
To work-around this issue disable the checkbox "Reject Malware during SMTP transaction" on the "Mail Security" -> "SMTP" -> "AntiVirus" tab in the "Scan during SMTP transaction" section.
as mentioned in the other thread: All messages get rejected by the SMTP proxy with the message "451 Temporary local problem - please try later". So this will probably affect your Outlook too.
To work-around this issue disable the checkbox "Reject Malware during SMTP transaction" on the "Mail Security" -> "SMTP" -> "AntiVirus" tab in the "Scan during SMTP transaction" section.
