OKI Printer Cannot Communicate With Office 365 SMTP Server | Color Printing Forum
How to handle SMTP Relay after migrating to Exchange Online | Tailspintoys - 365lab.net
Scan-to-email 2 MB size limit for no apparent reason. Suspect it's related to SMTP settings. A Microsoft 365 mailbox is configured on MFP units for scan-to-email. : r/sysadmin