Forum Discussion
Outlook Office 365 "Send Mail As" Email Authentication Error
My work has recently created an office 365 email account for me and I need to use this new email address as an alias for my current google email address when communicating with clients. I have d...
This can be blocked on several levels from O365 side, so best talk with your IT folks first. For example, basic authentication might be disabled, the POP/IMAP/SMTP protocols might be disabled, there might be a Conditional access policy requiring MFA, and so on.