I tried that but it will only let me sign into my virgin media account then into my email.
Signing in via the webmail link Graham_A mentioned earlier should take you directly to webmail and I cannot think of a valid process that would lead to a redirect to My Virgin Media.
Does the same happen when your browser is in Incognito / Private mode?
There used to be an option to sign into or view other email addresses this seems to gone.
By default webmail is configured to access a single email account, for example:
When signed into an account others accounts may be added via the Add email account, highlight below:
FYI: How to manage my email account | Virgin Media Help
Personally I do not feel there is any compelling reason to prefer webmail over a device's own default email client and you should consider managing your email accounts there.
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