We migrated to Exchange Online/Micorsoft Office 365 a couple of months ago. We had a lot of trouble getting our large Xerox copiers to scan to email afterwards, but eventually figured it out, and it has been working fine. However, this morning when we came in, 2 of the machines no longer can send to ExchangeOnline. We have an account that it is supposed to use. The password hasn't changed, and we made no changes to the copiers. The error we get is "completed with an error (027-777) : Server does not support SMTP authentication.". I don't think Microsoft changed, because we have other copiers that can still use this function. Has anyone else run into this?