Variable Data with test complete

You want a project variable to use as an index into your database.  In my attached example, it's called counter.  Set the local value to 1.  When you read the email address out of your database, use the variable to pick it, then increment the variable immediately after.



By using a project variable instead of a test variable, you will be able to retain the index value between runs.  If your tests end today on email 34, then tomorrow it will pick up with email 35, unless you go into the project and reset the local value manually.