I send emails using direct Winsock calls from VFP
( http://fox.wikis.com/wc.dll?Wiki~SendSmtpEmail )

It takes more than 8 hours to send 500 emails (!).

Using blat.dll to send emails to the same address takes only 30 minutes.
All email addresses are valid. Both blat and this code make separate logon
to mail server for each message. Any idea what is wrong ?