it seems that there is an intermittent issue at recipients end, as per the logs connection is getting refused by mail.savoyco.com.
----- The following addresses had permanent fatal errors ----- <firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org>
----- Transcript of session follows ----- <email@example.com>,<cade@
.. Deferred: Connection refused by mail.savoyco.com.
Message could not be delivered for 5 days Message will be deleted from queue
we found on our proffpoint gateway some mails were delivered some deferred
is there anything to be checked