Email unable to send messages
4.5
Messages stay in the outbox or return a "Delivery Failed" error.
Symptoms
- "Message not sent"
- Stuck in Outbox
- Bounce-back emails
Possible Causes
- Incorrect SMTP settings
- Outgoing port blocked
- Account suspended
Step-by-Step Fix
1
Check SMTP Settings
Ensure the outgoing server address and port (usually 465 or 587) are correct.
2
Verify Authentication
Ensure "My outgoing server requires authentication" is checked in settings.
3
Check Internet Connection
A weak connection can prevent the mail client from reaching the server.
When to See a Technician
If you can receive but not send, the issue is almost always with the SMTP port or authentication settings.
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