many thanks jonic,
In fact I already did this, (forward port 465 (secure smtp) and port 993(secure imap) from the router to the ip of SME).
In also made the download to the file for Email WBL, but sorry, It is the first time a use the SME Server, (but i already read all the documentation to install and to configurate the SME server

)
how to update this file in to the SME Server ?
MAIL Retrieval: Sorry, The 'E-mail retrieval mode' can be 'under' Configuration/Email' but usually can see this option (MAIL Retrieval) as a main option when I use the website to access the SME SERVER.
like in,
Collaboration Users
Groups
Quotas
Pseudonumyms
information Bays
Mail retrieval (missing)
Many thanks !!!