Hoping someone can help - I've had to disabled Microsoft Exchange Health Manager since installing Exchange 2013 SP1.
We're getting hundreds of Undeliverable: Inbound proxy probe emails in our spam (quarantine) folder.
We've tried adding the inboundproxy@contoso.com email address as a Bypass Spam Filter transport rule - restarted the transport rule, but they still come through.
I've also ran this command in EPS: Add-ContentFilterPhrase –Influence BadWord –Phrase “Inboundproxy” - restarted transport service - and they still appear.
Only when we stop the Health Manager service do they stop coming through.
Really wish we never installed SP1 just yet - unfortunately we don't have the money to build a testing environment either :(
Hope someone can help us out with this.
Thanks