So you think that emails you are sending to [email protected] are instead going to [email protected]? Or you think that emails you are sending to [email protected] are just disappearing into the ether?
It would (almost certainly, depending on provider) be possible for someone with the account details for the [email protected] address to set up rules that automatically forwarded all emails, or just those from fab@bakergirl, to [email protected]. Or to set up rules that just deleted them.
Do you think it's your emails in particular being targeted? Could you set up an alternative free email address and try emailng from that?