Hi everyone!
This one has been going on for some time now but I figured I'd finally give it the attention it deserves. We've received complaints about our max receive size being relatively small so I went ahead and checked our Exchange servers and I've found 2 locations where they could possibly be configured. We have 1 Hub/CAS & 1 Edge transport server in our environment and I've cross referenced the settings on both and I'm seeing different outputs on each.
Hub/CAS:
Transport config: MaxReceiveSize 30MB
Receive connector: 2 shown (Default & Client): 20MB
Mailbox config: MaxReceiveSize: unlimited
Edge:
Transport config: MaxReceiveSize: unlimited
Receive connector: Default: 900MB
Actual receive limit caps out at about 15MB, I was able to successfully receive 14MB. I have no idea where else to look or where to find out if an additional setting is overriding what I'm looking at. We're running Exchange 2007 SP3 rollup 10, your help is greatly appreciated!