We dont have a system admin anymore, can you be more specific so i can figure out what to check?

Hello, I would like to ask a question about a problem i had recently on exchange. I tried to log in to exchange in my company through blackberry in my account with my username and password but the emails that i see is from the general account of the company. For example. The company has the info@mycompcany .com and i have someone@mycompa ny.com So i tried to connect with the account of someone in pop3 and with imap. both cases i see the emails of info....