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

Buscar en Ayuda

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
Este tema ha sido archivado. Haz una nueva pregunta si necesitas ayuda.
Archivado

can't send emails

johnaforster

My isp is virgin media and I use Mozilla for browsing and emails. I have been with them for many years but recently I found that although I am receiving emails I can't send them . I get this message.

Sending of the message failed. An error occurred while sending mail. The mail server responded: Authentication Required (VM401). Please verify that your email address is correct in your account settings and try again.

My isp is virgin media and I use Mozilla for browsing and emails. I have been with them for many years but recently I found that although I am receiving emails I can't send them . I get this message. Sending of the message failed. An error occurred while sending mail. The mail server responded: Authentication Required (VM401). Please verify that your email address is correct in your account settings and try again.

Todas las respuestas (2)

please post a screenshot of your SMTP server pane and maybe we can offer suggestions.

David, the user posted the screenshot in a new thread:

Trying to redirect him back here.