help me winsock users

[saju nair]

i had developed a utility to send and receive mails using winsock control.iam able to use my utility to send mail in the pc where it is dialing the ISP.but my problem is i am not able to send mail from remote pc which is on LAN and we are using analog X proxy for accessing the internet throught LAN.how should i use the winsock control to connect to any SMTP server in the LAN.pls help me regarding this.

(mail me to:saju_t@usa.net)
saju nair