Exchange Receive Connector Allowing any internal Mail

%3CLINGO-SUB%20id%3D%22lingo-sub-2368007%22%20slang%3D%22en-US%22%3EExchange%20Receive%20Connector%20Allowing%20any%20internal%20Mail%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2368007%22%20slang%3D%22en-US%22%3E%3CP%3EHello%2C%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EI%20have%20an%20odd%20one%20I%20have%20my%20exchange%20Recieve%20connectors%20set%20to%20take%20mail%20from%20our%20server%20range%20only%20in%20format%20x.x.x.x%2F22%20our%20clients%20do%20not%20sit%20in%20this%20range.%20I%20run%20an%20SMTP%20diag%20tool%20from%20a%20client%20and%20this%20allowed%20mail%20to%20be%20sent%20to%20other%20mail%20boxes.%3C%2FP%3E%3CP%3E%26nbsp%3B%3C%2FP%3E%3CP%3EAny%20ideas%20why%20this%20maybe%20happening%3F%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-LABS%20id%3D%22lingo-labs-2368007%22%20slang%3D%22en-US%22%3E%3CLINGO-LABEL%3EExchange%20Server%3C%2FLINGO-LABEL%3E%3C%2FLINGO-LABS%3E
New Contributor

Hello,

 

I have an odd one I have my exchange Recieve connectors set to take mail from our server range only in format x.x.x.x/22 our clients do not sit in this range. I run an SMTP diag tool from a client and this allowed mail to be sent to other mail boxes.

 

Any ideas why this maybe happening?

1 Reply
Is there another connector that has a the scope of 0.0.0.0-255.255.255.255? If so, that can be the issue.