Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More
This thread was closed and archived. Please ask a new question if you need help.
Locked Archived

can't send emails

SuMo Bot

I can receive incoming mail ok, but when I try to send mail, I get a message "Login to server xxx with username xxx failed". I have re-entered my details but it won't send. This has been happening for a few days.

I can receive incoming mail ok, but when I try to send mail, I get a message "Login to server xxx with username xxx failed". I have re-entered my details but it won't send. This has been happening for a few days.

All Replies (1)

When I then close the email, I then get another message "Sending of the message failed. Unable to authenticate to Outgoing server (SMTP) mail.btinternet.com. Please check the password and verify the 'Authentication method' in 'Account Settings | Outgoing server (SMTP)'. I have done all this to the best of my knowledge but no good.

This question has been locked because the original author has deleted their account. While you can no longer post new replies, the existing content remains available for reference.