Currently, we are unable to receive emails attachments larger than 5MB.
This is what I have tried to fix the problem:
First, in the Server Configuration > Mailbox > First Storage Group > Mailbox Database > Mailbox Properties > Limits tab, I set the limits to 20 MB
Second, In the Recipient Configuration > Mailbox > Mailbox Flow Settings tab, I have set the Message Size Restrictions to 20MB.
That didnt work. Exchange kept rejecting emails with large attachments.
So, I went back to the above mentioned configurations and this time I cleared all the boxes for setting the message size limits assuming this would set the restrictions to unlimited.
But still didnt work. At this point, Exchange rejects any message with an attachment larger than 5 MB.
Any ideas on how to fix this problem? Any help is going to be highly appreciated.