This setting sets the maximum number of recipients to be sent in a mailing. By default, ListManager sends to all recipients.
Setting a sample size for a mailing
- Navigate to "Mailings: New Mailing"
- Input the HTML, Text, headers, and any other options as normal
- Navigate to the "Recipients" tab
- Input the desired sample size into the "Sample size" field
- Save the mailing by choosing the "Save" button