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Title
SMTP Protocol Returned a Permanent Error 530 5.7.57 SMTPP; Client was not authenticated to send anonymous mail during MAIL FROM -
Description
Domino users are not able to send mails to Office365. You see the following in the log file:
Remote Server returned '<11.11.11.11 #5.0.0 X-Notes; Error transferring to 11.11.11.11; SMTP Protocol Returned a Permanent Error 530 5.7.57 SMTP; Client was not authenticated to send anonymous mail during MAIL FROM
Outbound connector is pointed to smtp.office365.com
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