I always use the quickscan from Sygate to make sure i have no open ports. Until now, it always showed up as all ports blocked. Today, it says my SMTP port is open. How do I close it? Thanks. I have XP home.

Look within Sygate to find what has port 25 open. Have you run a virus scan? Application Tab - shows the running application(s) Protocol Tab - shows the protocol(s) in use by the application(s) Status Tab - shows the status of the connection(s) the application(s) is/are making. Listen means waiting for a connection. Connect means currently connected. Local Port - Local port(s) involved in the connection(s) described in the status, protocol and application tabs. Remote Port - Remote port(s) involved in the connection(s) described in the status, protocol, and application tabs. IP Addresses - the IP addresses involved in the connection. The left IP is the owner of the local port. The right IP is the owner of the remote port. This reads like this... 0.0.0.0->0.0.0.0 Process Tab - shows the unique process ID of the application making connection(s). Application Path Tab - shows where on your computer the application making connection(s) is located. http://bellsouthpwp.net/i/k/ikpe/SygateBasics.html Another test site, for second opinion; http://www.pcflank.com/ Good luck

Its OK to have 25 open outgoing.

Port/Protocol: 25/TCP Service: SMTP Description: Simple Mail Transfer Protocol (SMTP) is used by SMTP mail servers to to receive emails. Trojans using this port: Atomic2, Barrio, Boshka, BSE, Coced, Dial-Up Trojan (DUT), E-Mail Password Sender, FileMail, Gip, Grincart, Grincart.scanregw, Hooker, HPTeam, ICQ Password Sniffer, ImgStop, Indoctrination, Inet, Infos, Joky, Kuang2 loggerAS, Kuang2 pSender, M2, MailBombTrojan, Mentat, Milena, Moscow E-Mail Trojan, MSExt, Note, NWLS, Password Mailer, PLICT, Pricol, Progenic Mail, ProMail, RegForm, Rembomb, Shtirlitz, SoftWar, Soshka, Speed, Stealth, TailGunner, TaskMan, Terminator, UDP Sender, UniteMail, WC Mail, Widget8, WinPC, WyrvMail Port/Protocol: 25/UDP Service: SMTP Description: Simple Mail Transfer Protocol (SMTP) is used by SMTP mail servers to to receive emails. Trojans using this port: none More info and another test; http://grc.com/port_25.htm