Can you put forever stamps on a rigid mailer

The USPS (United States Postal Service) has specific guidelines for using Forever Stamps on mailers, including rigid mailers.

According to the USPS, Forever Stamps can be used on rigid mailers, but there are some conditions:

  1. The mailer must be a rigid, self-contained envelope: This means the mailer must be a sturdy, rigid envelope that can withstand normal handling and processing. Examples of rigid mailers include cardboard envelopes, plastic envelopes, or envelopes made of other rigid materials.
  2. The mailer must be properly sealed: The mailer must be sealed in a way that prevents the contents from spilling out during processing. This can be done using adhesive, tape, or other sealing methods.
  3. The Forever Stamp must be affixed to the mailer: The Forever Stamp must be affixed to the mailer in a way that prevents it from coming loose during processing. This can be done by applying the stamp to the mailer using a adhesive or by using a stamp affixed to a label that is then applied to the mailer.

If you're using a rigid mailer, you can affix a Forever Stamp to the mailer as long as you follow these guidelines. However, if your mailer is not rigid or is not properly sealed, you may need to use a different type of postage or consult with the USPS for guidance.

It's always a good idea to check with your local post office or the USPS website for the most up-to-date information on using Forever Stamps on mailers.