The latest update enables the authentication of corporate email servers via SPF, the manual import of certificates as well as detailed partner settings. This makes the use of NoSpamProxy Cloud even easier and more flexible.
New features such as S/MIME 4 support, metadata service 32Guards and Flow Guard, and new web app offer the best protection for email communication and set the bar high for the competition. Learn more about all the exciting new features in NoSpamProxy 14!
Dear NoSpamProxy customers,
since a few hours we see in customer environments that send outgoing e-mails from O365 via NoSpamProxy the error “Unable to relay”. We found that Microsoft uses a new certificate to identify all Office 365 email servers, which was issued by a GlobalSign CA rather than Microsoft’s own CA. The NoSpamProxy security check to see if the server is a valid “company e-mail server” fails and the e-mails are rejected. A new Fast Channel Version is available to fix this issue.
We apologize for any inconvenience caused.
Your NoSpamProxy Team
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