Hope somebody could help me on this!
We have a strange problem with our Exchange server. Currently running Eachange 2013 with all roles enabled on single server.
Port Re-Direct and Reflector Service is been used from www.noip.com
Mail Flow incoming is:-
Sender -->> No IP -->> Our Exchange Server
NO IP are saying everything is OK there side.
When a user sends an e-mail with no attachment delivery time is approx 30 seconds. When the same user sens with an attachement (even 500kb) delivery time is sometime 2+ hours.
Im no Exchange GURU so dont even know where to start looking.
As part of fault finding so far:
Server is Windows 2008 R2 (64 Bit), Fully Patch
Exchange Fully Patched
Mail Filter Disabled on Exchange
Server Specs are:- , 8 Gig RAM, only 5 Gig Used. Running on ESXi. 12 Mailbox's currently on there.