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Outlook Support

Outlook Not Sending Email?

Messages stuck in the Outbox can be caused by connectivity, account authentication, attachments, offline mode or Outlook configuration.

Before changing account settings, check whether Outlook can connect normally and whether the problem affects one message or every message. A large attachment or a temporary account connection issue can also keep a message from sending.

What to check first

  1. Check whether Outlook shows Working Offline or another connection warning.
  2. Send a short test message without an attachment.
  3. Check the Outbox for a message that may be blocking the send queue.
  4. Verify that the account is still signed in and not asking for authentication.
  5. Test the account through its webmail service when available.
  6. Check whether a very large attachment is preventing the message from being sent.
Independent service: SafeCode Technologies is an independent technical-support provider. We are not affiliated with Microsoft, Google, HP, Canon, Epson, Brother or other manufacturers and software publishers unless expressly stated.

When basic troubleshooting doesn't fix it

If Outlook remains unable to send while webmail works, the problem may be local to Outlook, its profile or its stored account configuration.

SafeCode can provide remote technical assistance for supported computers, software, connectivity and home-office technology.

Related SafeCode guides

Still stuck?

If you have already tried the standard fixes and the problem remains, call SafeCode to discuss remote technical assistance.

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