|Obtain a Mail Authorization Card (MAC)|
All bundles of outgoing mail must be accompanied by a valid mail authorization card (MAC); failure to do so may result in the delay or return of mail. Penn Mail Services sends mail using presort service unless indicated as follows:
Order MACs by sending email to
Send all written requests to: Penn Mail Services, Left Bank Commons Ste. 500/6280. Or you can fax it to (215) 573-2055.
Please note: specify a new budget code and/or request that old MAC code be disabled.