Mail problem sending bare line feed characters

Is it prudent to revive an old post? How can I remove bare line feed characters from the email that UrBackup is sending? I am stumbling over this - the reason MS365 is so picky about this is for their implementation of spam filtering with DANE, which I don’t want to relax. MS is like a Landrover, for better or worse, you don’t use it, you marry it. I thus would like to solve this from the URBackup side. I tried changing the report script (it seemed like a really good idea), but that has not solved the issue.
Does anyone else have a solution for this?