I'm having an issue where a client is sending many messages to James 3.04b and for no reason I can determine, suddenly James fails to return a 250 code after a particular messages is sent. The connection seems to hang until the client disconnects then re-connects and continues sending. I see no commonality in the messages being sent when James hangs and no errors messages in the SMTP logs. Has anyone seen a behaviour like this and know a cause/fix? Thanks.
