The SendLetterAdvanced feature allows our developers to enclose a reply envelope with any letters sent using the PostalMethods web-to-post service.

No.9 single window envelope

The additional envelope is billed as an extra page and charged accordingly depending on your prepaid package. Click here to see our price page for more details.

In addition the feature allows for a perforation to be added at the foot of the letter.

This new feature allows the recipients of your letters to tear off payment slips, order forms or coupons and return them using a No.9 single window envelope. We’ll even print your reply address on your letter to fit the envelope window and we’ll validate most US postal addresses.

To find out how to use the SendLetterAdvanced feature click here.