Ignition Report Email error

I have a report that's schedule to run and send out an email, lately it's been failing with this error -> # Exchange error: 452 4.3.1 Insufficient system resources

Is this something I need to handle of the exchange server side or on my report? What could cause this?

You'll have to look in your mail server's logs for more detail, but I would suspect that the file size has grown and passed some limit. (Or your mail admins changed the limit.)

(This is definitely on the Exchange server side, not Ignition.)