dsn=4.3.0, stat=Deferred: 451-Sender host (41.78.83.238) not yet
authorized to deliver from 451- to
. Please 451 try again later. Hello
Team,Help someone should explain what this error means. Regards,Firdausi
Hello Team,Please is it possible mails from external domains with NO SPF
Record or SPF=Hard fail to be sent to the junk folders of our protected
domains instead of coming in to our system quarantine. So with that, the
administrators of the protected ...
Hello Team,Please someone should assist me the best apprach /practice to
external doamis with SPF Softfail or without SPF record published.It is
frustrating whenever an external domain sends mail with the issue above
failed to deliver to my own domai...
Here is the Error message:SMTP authentication failure:
authid=nezo@nitda.gov.ng, authtype=LOGIN, client_ip=163.123.143.88,
detail=SASL(-1): generic failure: checkpass failed
Hi cchiriches,Thank you so much for responding. i really appreciate.Yes,
the messages are landing in spam sent from fortinet service.Yes, we are
using SMTP server. Regards,Firdausi
