Hi everybody, I would like to ask you two questions, 1- are your Pop3 clients able to send messages using any account of the domain, if they don't use the password? 2 - how can I prevent this from happening? If I configure a Pop3 account on OExpress, and use any account in the account name without password, I can send messages to everybody inside the domain. For example, my e-mail address is fgaudencio@xxxxxxx if I configure my pop3 connection to use the account name fgaudencio and the password is clear, I'm able to send messages to everybody inside the ipg.pt. Can you help me? __________________________________________________ Filipa Maria Pacheco Gaudêncio