Hello, Ive got an Exchange 07 environment with two exchange servers (1 on Server 08 & 1 on Server 03), both running as CAS, Mailbox, & Hub Transports. Ideally I would like to limit everyone in the company with a 2560 KB Maximum Send Size and a 30720 KB Maximum Receive Size. However, there are a handful of users who need permission to send larger emails, say 10240 KB.
If we set the Transport Settings (Organization Configuration -> Hub Transport -> Global Settings -> Transport Settings) to a Max Send Size of 2560 KB, emails from outside the company that are larger than 2560 KB dont come through.
If the Send Connector (Organization Configuration -> Hub Transport -> Send Connectors) Maximum Message Size is set to 2560 KB, it does work correctly for its users; however, exceptions cant be made under it i.e. if we try to grant a larger send limit to a mailbox that uses that send connector, its still restricted by the send connector.
This leaves setting permissions on each individual mailbox, which does work properly, but seems like a clunky way of having to set everything up.
I have two questions one, why does the Maximum Send Size restrict our incoming traffic and two, is there a way to set a global Max Send Size that is smaller than what we would need to set on some exception mailboxes?