I am using exchange 2013 and I have users that when they send any emails with attachments over 20mb, it fails.
How do I change the setting to allow up to 30mb attachments in size? I've googled this, but to no avail.
In ECP, I looked under mailflow and then rules, but I don't have any rules there. I tried creating one, but I can't because I don't have the enterprise CALs I guess is what it's telling me.
Any help would be appreciated.
Dan