I recently purchased the Catalyst Socket Tools Library addition and incorporated the smtp emailing functions into our app however, I'm using the dll's, not the activeX components. So far it's working very well.
If you decide to go this route here are my DLL definitions for the functions I'm using, maybe it will save you a little time.
Randal
DLL FUNCTION SmtpInitialize(license AS LPSTR, initdata AS LPSTR) AS BOOL ;
PASCAL FROM "SmtpInitializeA" LIB hSmtp
DLL FUNCTION SmtpUninitialize() AS VOID ;
PASCAL FROM "SmtpUninitialize" LIB hSmtp
DLL FUNCTION SmtpAuthenticate(hClient AS LONG, authtype AS LONG, username AS LPSTR, password AS LPSTR) AS _INT ;
PASCAL FROM "SmtpAuthenticateA" LIB hSmtp
DLL FUNCTION SmtpGetLastError() AS DWORD ;
PASCAL FROM "SmtpGetLastError" LIB hSmtp
DLL FUNCTION SmtpGetErrorString( errorcode AS DWORD, @description AS LPSTR, maxlength AS _INT) AS _INT ;
PASCAL FROM "SmtpGetErrorStringA" LIB hSmtp
DLL FUNCTION SmtpGetResultCode( hClient AS LONG) AS _INT ;
PASCAL FROM "SmtpGetResultCode" LIB hSmtp
DLL FUNCTION SmtpGetResultString( hClient AS LONG, @cResult AS LPSTR, nLen AS _INT) AS _INT ;
PASCAL FROM "SmtpGetResultStringA" LIB hSmtp
DLL FUNCTION SmtpGetCurrentDate( date AS LPSTR, len AS LONG) AS _INT ;
PASCAL FROM "SmtpGetCurrentDateA" LIB hSmtp
DLL FUNCTION SmtpGetStatus( hClient AS LONG) AS _INT ;
PASCAL FROM "SmtpGetStatus" LIB hSmtp
DLL FUNCTION SmtpIsConnected( hClient AS LONG) AS BOOL ;
PASCAL FROM "SmtpIsConnected" LIB hSmtp
DLL FUNCTION SmtpConnect( remotehost AS LPSTR, port AS _INT, timeout AS _INT, options AS DWORD, localname AS LPSTR, @cred AS LPSTR) AS LONG ;
PASCAL FROM "SmtpConnectA" LIB hSmtp
DLL FUNCTION SmtpDisconnect( hClient AS LONG ) AS _INT ;
PASCAL FROM "SmtpDisconnect" LIB hSmtp
DLL FUNCTION SmtpSendMessage( hClient AS LONG, from AS LPSTR, to AS LPSTR, message AS LPSTR, messagesize AS DWORD, options AS DWORD) AS _INT ;
PASCAL FROM "SmtpSendMessageA" LIB hSmtp
*DLL FUNCTION SmtpAddRecipient( hClient AS LONG, to AS LPSTR) AS _INT ;
* PASCAL FROM "SmtpAddRecipientA" LIB hSmtp
//----------------------------------------------------------------------------//
// Mime library
DLL FUNCTION MimeInitialize(license AS LPSTR, initdata AS LPSTR) AS BOOL ;
PASCAL FROM "MimeInitializeA" LIB hMime
DLL FUNCTION MimeUninitialize() AS VOID ;
PASCAL FROM "MimeUninitialize" LIB hMime
DLL FUNCTION MimeGetMessageVersion(hMessage AS LONG) AS STRING ;
PASCAL FROM "MimeGetMessageVersionA" LIB hMime
DLL FUNCTION MimeComposeMessage( from AS LPSTR, to AS LPSTR, cc AS LPSTR, subject AS LPSTR, messagetext AS LPSTR, messagehtml AS LPSTR, characterset AS _INT, encodingtype AS _INT) AS LONG ;
PASCAL FROM "MimeComposeMessageA" LIB hMime
DLL FUNCTION MimeDeleteMessage( hMessage AS LONG) AS BOOL ;
PASCAL FROM "MimeDeleteMessage" LIB hMime
DLL FUNCTION MimeExportMessageEx( hMessage AS LONG, exportmode AS DWORD, exportoptions AS DWORD, @message AS LPSTR, @messagesize AS DWORD) AS _INT ;
PASCAL FROM "MimeExportMessageExA" LIB hMime
DLL FUNCTION MimeAttachFile( hMessage AS LONG, filename AS LPSTR, options AS DWORD) AS _INT ;
PASCAL FROM "MimeAttachFileA" LIB hMime
DLL FUNCTION MimeGetLastError() AS _INT ;
PASCAL FROM "MimeGetLastError" LIB hMime
DLL FUNCTION MimeGetMessageHeaderEx( hMessage AS LONG, messagepart AS _INT, header AS LPSTR, @value AS LPSTR, maxvalue AS _INT) AS _INT ;
PASCAL FROM "MimeGetMessageHeaderExA" LIB hMime
DLL FUNCTION MimeGetMessagePartCount( hMessage AS LONG) AS _INT ;
PASCAL FROM "MimeGetMessagePartCount" LIB hMime
DLL FUNCTION MimeCreateMessage() AS LONG ;
PASCAL FROM "MimeCreateMessage" LIB hMime
DLL FUNCTION MimeImportMessageEx( hMessage AS LONG, importmode AS DWORD, importoptions AS DWORD, @message AS LPSTR, @messagesize AS DWORD) AS _INT ;
PASCAL FROM "MimeImportMessageExA" LIB hMime
DLL FUNCTION MimeExtractFile( hMessage AS LONG, @filename AS LPSTR) AS _INT ;
PASCAL FROM "MimeExtractFileA" LIB hMime
DLL FUNCTION MimeGetAttachedFileName( hMessage AS LONG, @filename AS LPSTR) AS _INT ;
PASCAL FROM "MimeGetAttachedFileNameA" LIB hMime
DLL FUNCTION MimeSetMessagePart( hMessage AS LONG, part AS _INT) AS _INT ;
PASCAL FROM "MimeSetMessagePart" LIB hMime
DLL FUNCTION MimeGetMessageText( hMessage AS LONG, offset AS LONG, @buffer AS LPSTR, bufferlen AS LONG) AS _INT ;
PASCAL FROM "MimeGetMessageTextA" LIB hMime