Likely fix
Fix: Can receive email but cannot send
If you can receive email but cannot send, the receiving settings are working but the outgoing SMTP server, authentication, password, port, or provider settings may be wrong.
Quick answer
Check outgoing SMTP settings, make sure SMTP authentication is enabled, update the saved password, and test sending from webmail.
Important warning
Receiving email uses different settings than sending email. Incoming mail can work even when SMTP sending is broken.
Try this
- 1 Check whether webmail can send from the same account.
- 2 If webmail sends, the problem is probably your mail app settings.
- 3 Open account settings in the mail app.
- 4 Check the outgoing mail server or SMTP server.
- 5 Make sure SMTP authentication is enabled.
- 6 Re-enter the account password.
- 7 Check the SMTP port and encryption setting recommended by your provider.
- 8 Remove and re-add the account if settings still fail.
Common causes
Wrong SMTP server.
SMTP authentication disabled.
Old saved password.
Wrong port or encryption setting.
Provider requires app password.
Mail app account settings are corrupted.
What to check next
- Check whether webmail can send.
- Check SMTP server name.
- Check SMTP username and password.
- Check whether the provider requires an app password.
- Check port and encryption settings.