Receiving E-Mails with no account?

Hello, i have a 8900 on 02.

Set up my personal email account on the phone and have recently been receiving 2 duplicate emails each time i receive an email.

I deleted the email account via my networks BIS website yet i am still receiving emails from that account. Since i have deleted the account i only receive 1 copy of the email though, which is what i want!

The only problem now is that i can't be notified if i receive an email as the phone doesn't not recognize the account so will not show the option in profiles to change the notification settings.

Why is this?

Thank You