Best Practices for First Class Mail
Mail Services processes thousands of pieces of incoming and outgoing mail each day. There are several things that your department can do to expedite your mail.
- Address your mail properly
- Prepare outgoing mail for Mail Services
- Design mailers according to USPS guidelines
- Use the University's mailing and printing resources
When sending mail, be sure to use the correct mailing abbreviations.
See the USPS State Abbreviations for reference.
When receiving mail, provide the following return address details to senders:
- Your name
- Northwestern University
- Building address
- Evanston, Illinois 60208-xxxx (Evanston mail code) or Chicago, Illinois 60611-xxxx (Chicago mail code)
Separate your mail into these categories before it is picked up:
- Domestic mail that requires postage
- International mail that requires postage
- Stamped mail
- Evanston campus mail
- Chicago campus mail
- Letter-size mail does not have to be sealed, but the flaps should be left up (nested). This mail is sealed as it passes through the mailing machine.
- Envelopes larger than letter size, as well as all international mail, should be sealed before it is given to Mail Services.
Complete a "Request for Mailing Services" form and attach barcode for all outgoing mail.
Use of this form will help your department keep track of your postage dollars and reconcile your billings. Barcode labels should be attached to the "Request for Mail Services Form" for faster processing.
- Need forms and barcodes? Download and submit the electronic request form (pdf).
- Read more about preferred mailing procedures on our chargeback web page.
Call Evanston Mail Services at 847-491-7227 or Chicago Mail Services at 312-503-8131 before designing mail pieces to ensure proper United States Postal Service guidelines are followed.
Permit imprint can expedite mass mailings.
When postage information is pre-printed in the upper right corner of the mail pieces it is called a "permit imprint." It has not postage discount but can expedite delivery for mass mailings. It can be used when:
At least 200 pieces of First Class Mail or Standard A Bulk Mail are sent out
- The items are the same size and weight, and weigh less than one pound per piece
- The mailing does not require specially printed envelopes
By printing the proper First Class Mail indicia directly on the envelope, your mailing does not have to go through the mailing machine and can be processed faster. There is no need for special sorting by the sender, the mail can be sent to Mail Services in any order.
Call Evanston Mail Services at 847-491-7227 or Chicago Mail Services at 312-503-8131 for more information on permit imprint eligibility.
If you receive mail that is delivered to an individual no longer in your department (but still at Northwestern) or if the mail was delivered to your department in error, complete the Evanston Misdelivered Mail Form (doc) or Chicago Misdelivered Mail Form (doc).