There's both a minimum and a daily maximum. You must mail at least 200 pieces and to at least one carrier route every time you mail, so the minimum number of pieces required is the number of active deliveries on a single carrier route, but not less than 200. The maximum number of pieces is 5,000 per Post Office, per day. There is also a limit of five 5-Digit ZIP Codes per EDDM® mailing.
If you have additional questions, please contact Click2Mail Customer Support at 866-665-2787 or [email protected]. Our hours of operation are Monday - Friday, 9 AM to 8 PM Eastern.