This piece of code sends mail using the MAPI controls.
1) AXMapimessages 
2) AXMapisession 
This piece of code is in the initial stage. This is a way towards automating the 
E-Mail client like Outlook Express. The next version will send and receive 
messages. Hang on friends for my code for sending messages by Winsock.
Procedure: 
To run this code you need following things:
An Email client (Like outlook express) set up on a machine. The email client 
should be configured for sending and receiving email. Also correct incoming and 
outgoing IP addresses on the system. 
- Run the code. A small window will open with one 
button. 
- Enter the E-Mail id of the person to which the 
message to be sent. 
- Enter the subject of the mail. 
- Enter the matter (Main message) of the mail.
- Click on the "Send mail" button. 
Source Code: 
Information : 
'Creating a session
axMAPISession1.Action = SESSION_SIGNON
'Relating the session
axMAPIMessages1.SessionID = 
axMAPISession1.SessionID
'Resolving the mailid
axMAPIMessages1.Action = 
MESSAGE_RESOLVENAME 
'Sending the message
axMAPIMessages1.Action = MESSAGE_SEND
See the code for more details. 
General Description: 
The messaging application program interface (MAPI) 
controls allow you to create mail-enabled Visual Basic applications. MAPI is a 
set of core system components that seamlessly connect any mail-enabled or 
workgroup application to MAPI-compliant information services. For example, the 
Microsoft Exchange messaging system can be connected to most private or public 
e-mail systems through the use of MAPI drivers.v