Cause: Some POP and IMAP email accounts use an outgoing mail (SMTP) server that requires authentication.
Solution: Verify that Outlook is online. On the Outlook menu, make sure that Work Offline is not checked. For information about checking the status of your network connections, see Mac OS Help. On a local network, see if you can access intranet sites. Use a web browser to see if you can access web sites. Solution: Make sure that your computer is connected to the Internet or your network. If you are using Safari as the browser to access, you will need Safari 16 or newer.Ĭause: Outlook doesn't have a connection to the Internet or your network. Check your mailbox storage to see what's taking up space.
If your Microsoft cloud storage is full, you cannot send or receive email.
