Exchange 2013 mail flow issue

Dears

I have exchange 2013 , I facing issue of mail flow, I enable anti spam internal and I configure recipient "External users" filter exception 

Issue :

some of exchange users try send mail , all mails not reachable to the our recipient , but it forward to the recipient in the filter exception .!!!!

the issue solved by restart the exchange servers 

I check all transport rule , 

If any one have any recommendation to track this issue , please update us .