The Outbox will disappear once the mail is sent. This usually happens due to situations if you are working in offline mode or there is a connection problem.
The Outbox in Apple Mail appears only when an email you are trying to send is not able to be sent. It is fairly a common issue faced by you if you are one them who wants a solution for it.Ĭause of Mac Mail not Sending Stuck in Outbox
Typically this is in the form some server connection error, a mailbox gets stuck offline, repeated request for a password from Mac mail or some other connection error. Some Mac users who updated Mac Mail experience some trouble to send an email like Mac Mail emails remain stuck in Outbox. Are you facing email not sending problem where email from Mac Mail Stuck in Outbox?