Putting A Delay Into A Loop ?

I have an application which loops through several thousand subscriber
records, compares each subscriber's requirements to a database of
businesses for sale, and then prepares and mails off an email
containing info from the database that the client is interested in.

Problem is that the ASP file exits as soon as it has sent about 50 or
so records to the Mercury/32 mail server on the local Ethernet. No
error message or program execution issues noticed. I then delete the
first 100 or so subscriber records and set the file off again. In the
loop thru the next 100 subscribers it prepares an email for approx
every second subscriber, then seems to hit this 50 max limit and
terminates again. Driving me crazy.

I figure that somewhere there's a queue building up which maxes
something out and causes some low level termination. To test that,
I'd like to build something into the loop thru the subscriber file
that causes a delay of 10 seconds or so before the loop starts again.

Code: