Dears, First of all say hello to everybody. Web is ok. Squirremail is ok (I can send and receive mails) Ftp is ok. The problem is with the Mail.app. I can't not connect to my imap or pop sever. I can connect with telnet outside of my house, the nmap says that the ports 25,143 and 110 are open. nmap: Code: 21/tcp open ftp 22/tcp open ssh 25/tcp open smtp 53/tcp open domain 80/tcp open http 110/tcp open pop3 143/tcp open imap 443/tcp open https Any idea?? I am using ubuntu server 9.10. Thanks a lot!