[cobalt-users] is my mail server hacked!?!?!?

[a.cioffari@xxxxxxxxxxx]

hi guys,

I think my mail server is hacked!!!

my problem:
when I see in Site Usage > e-mail > Emails Received by Address (Top 20)

in the table I see some e-mail addresses so:

name@xxxxxxxxxxxxx 167 (29.8%) 3038k (9.0%) (graphic here)

and in the next line

name@xxxxxxxxxxxxx?name@otherdomain.com 15 (2.7%) 64k (0.2%) (graphic 
here) 

question:
what is the "?" ?

Ithink when I recieve a e-mail to name@xxxxxxxxxxxxx, 
name@xxxxxxxxxxxxxxx recive one copy too!!!! can anybody help me?!!?!? 

thanks!!!!

angelo