https://www.computerhelpsos.com/outlook-365-app-has-items-in-the-outbox-and-does-not-send-them/
Outlook 365 App has items in the outbox and does not send them - ComputerHelpSOS IT Support &...
May 1, 2023 - Outlook 365 App has items in the outbox and does not send them. Updates from the exchange server are slow and sluggish. Solutions: Disable IPV6 in your