How do I get rid of send and receive error in Outlook?

If there are any messages that are stuck, follow these steps to clear those messages:

1. In Outlook, click the Send/Receive tab, and then click Work Offline. Note This stops Outlook from trying to send all email messages.
2. Select the Outbox. …
3. Click the Send/Receive tab, and then click Work Offline to de-select it.