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Geraldt's avatar
Geraldt
Settling in
21 hours ago
Solved

Thunderbird: My principal email address suddenly unable to send/receive

I have been using Mozilla Thunderbird for several years. Suddenly the app was unable to receive (nor send) emails addressed to my principal email address (*@ntlworld.com) - my other email addresses (also *@ntlworld.com) have been unaffected.

The following message always appears:-

"Login to server pop3.ntlworld.com with username *****@ntlworld.com failed."

I have tried all passwords, including that for the non-virgin email address which I have to use to sign-in to Virgin Media. Also, have tried changing 'virginmedia.com' to 'ntlworld.com' in Server Settings and Account Settings (SMTP setting).

I am at a loss, having searched this forum and the internet for a solution since 1 July 2025.

Of course, I am able to access all my email addresses by signing into my Virgin Media account.

email
ntlworld
Thunderbird
  • goslow's avatar
    goslow
    20 hours ago

    OK, well follow the info in the link above by logging into My VM for the mailbox in question and generate an app password for that mailbox (each mailbox now has its own My VM login)

    Then configure Thunderbird using the full email address as the username, the app password and the server settings also mentioned in the link above.

5 Replies

  • Geraldt's avatar
    Geraldt
    Settling in
    20 hours ago

    Thank you for the response.

    A sensible question, but I can not provide a similar answer.

    I set up Thunderbird quite a while ago, and, sadly, I can not recall exactly what I did.

    I have tried all relevant passwords, without any success, but I am sure I do not have a VM generated password.

  • goslow's avatar
    goslow
    Alessandro Volta
    20 hours ago

    OK, well follow the info in the link above by logging into My VM for the mailbox in question and generate an app password for that mailbox (each mailbox now has its own My VM login)

    Then configure Thunderbird using the full email address as the username, the app password and the server settings also mentioned in the link above.

  • Geraldt's avatar
    Geraldt
    Settling in
    19 hours ago

    Excellent!

    Simple when you know how.

    Thank you for your help and solution. Very much appreciated.