Issue:
Emails are stuck in Pending Send.
Resolution:
Troubleshooting:
1. Verify the User in the From field of the email has their Outgoing E-mail Del type - Outgoing sent to "Server-Side Synchronization or E-mail Router".
2. Even if that is not the issue you may have to click Approve E-mail in the top ribbon toolbar to make sure the e-mail is approved. If you did have to do step one you will absolutely have to do step 2.
3. If that is not the issue, click on the Default Queue for the User in the From field of the email.
4. If no email is listed in the Queue, add the same email address as the User and Save.
5. Click Approve E-mail.
6. If that does not work, go to the QUEUE and open the Mailbox.
7. Ensure that the Outgoing Email field does not say None.
a. If this field says None change it to Server-Side Sync and afterwards click the Approve Email(just in case) and then Test & Enable Mailbox.
8. If that is not the issue, put in a support ticket and ask Support to verify that the Email service is started on the server.