Blueyonder Webmail - 403 Forbidden

Dalek​ "Can't access it, getting a 403 Forbidden error message."

That means that VM have locked your account for some reason.

Here's how to unlock it:

Sign into the My Virgin media account  https://www.virginmedia.com/myvmo2  for the email concerned with your VMO2ID
Select "Account Settings"
Select "Identity & Security Settings"
Select "Manage your products"
Select "Manage email app password"
Click on the blue button 'Get New Password'

As part of that process you will get a pop up message asking you to verify your email address and you'll be sent a one time passcode to enter on the next page to verify it's you. Once verified you'll then be given an app password and your webmail account should now be unlocked to allow you access your emails.

However, if you also access your VM email account via an email app (such as Outlook of the Apple Mail app) you need to note down that mail app password (it will be in the format "word-word-word-word") and then update the password held in your email app. It often takes a bit longer to unlock app access so leave it an hour or so before testing again with the app.

Try that and see how it goes.

Coenoby