It frustrates me now.
I changed the size limit to 100MB on Organization Configuration – Hub Transport – Global Settings – Transport Settings.
I changed the size limit to 100MB on Server Configuration – Hub Transport – Receive Connectors (All connectors)
Checked the user size limits and made sure there is 100MB and still a user gets a Barracuda notification that due to e-mail size message was refused.
On Barracuda the message size is set to 100MB. The user is in the whitelist senders and Barracuda reports allowed.
Where, I would like to say (the hell) :) is the setting I am missing?
Diagnostic-Code: smtp;550 5.2.3 RESOLVER.RST.SendSizeLimit; message too large for this sender