Hi All,
I have an exchange 2013 server sitting on Server 2012 R2, Spam filtering works just fine for most spam received, but when an email is reporting as being from user@mydomain.com, it comes straight through, at first it was very seldom, but it's increasing to several a day.
I have a pretty simple standard setup I would imagine, but have SMTP sending enabled for unauthenticated user and have restricted by sending IP.
I also has the SPF filter in place, but with the least restrictive settings as email being falsely rejected would be a huge problem.
Advice on this would be greatly appreciated.
Kind Regards
Richard
Richard Tarlton