Migrated to greenby but plusnet mail still active?

[#1]

I just wondered if this was normal?

I had the welcome email from Greenby in December and have been using Greenby since then.  I still have the link to the plusnet email and clicked on by mistake tonight and the plusnet email  is still active there, albeit a bit slow.

[#2]

Quite normal.

At the moment both sets of Web Mail point to the same mailboxes.