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Email stuck in the Outbox in Outlook 2010
Move or delete a email stuck in the Outbox.
FIX: You cannot send emails to Exchange Online users from Outlook
Automatically fix the undeliverable email issue (delivery has failed to these recipients) when Microsoft Services Sign In is not running or signed in.
Unable to Send/Receive e-mail
I have a Compaq Presario with Microsoft Outlook 2003 that is unable to Send/Receive. The dialogue box at the bottom right corner is reading
Connect and send/receive e-mail messages - Outlook - Office.com
By default, e-mail messages are sent automatically when you click Send in a new message window. You can also manually send and receive messages at any time.
Troubleshoot: I can send, but not receive e-mail messages - Outlook - Office.com
I can send, but not receive e-mail messages Applies to Microsoft Office Outlook® 2003 You can check several things to help resolve being able to send but not receive e-mail