> How do i go about checking to see if an email address exists?
Depends what email server is running on the server where your mailbox is.
Some have different responses that can be used to tell whether an address is
active, but most nowadays won't reveal anything. Google is your friend. The
only surefire way of doing this is sending an email.
>
> i understand that its bad news with regards to spammers but i want to
> see if i can email my work account, as it is an ancient system (Green
> Screen Terminals!) and nearly all internal, but some external emails
> have been sent to me. i dont want to actually send an email as i may
> get in trouble.
See above. Why would you get in trouble?
>
> The address i think ive worked out is: username@(E-Mail Removed)
> , is this format possible??
No.
(E-Mail Removed) is possible, do you mean this?