我n年没用过vb了,你可以用DELPHI生成一个EMAIL ocx给vb用,虽然大了点
http://vivifying.533.net/vbjq/vbemail3.txt
http://www.softunion.net/blackcat/qa/qa_net.htm#vb_net_00001
http://askpro.east.net.cn/cgi-bin/view.pl?000745
http://askpro.east.net.cn/download/popmail.zip
http://xwwdaye.533.net/VB.htm (网络类控件)
http://www.zjonline.com.cn/vbbible/software/program/ocxnetwork.htm
http://cegcegceg.top263.net/docments/vbemail.zip
http://cegcegceg.top263.net/jszl.htm
http://cuit.51.net/softstar/downsoft/vb/Email.exe
http://www.nease.net/~xieming/component/Internet/internet.zip
http://qianqian.363.net/weekly/day000310.htm (如何从VB发送E-Mail)
http://202.106.127.182/aspfans/lyfmail.htm (中国人编的)
http://www.3thspace.com/delphi/d22.html (Email 服务器的简单实现)
http://go4.163.com/~tulipstudio/Vb/Net/email.htm (使用winsock控件设计email客户端软件)