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.

The perforation will be positioned in the bottom third of the page.

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.

Please note the SendLettersAdvanced feature is exclusively available to our developers and only when printing in black. (No.9 single window envelope 3 7/8in.x8 7/, white wove, 24lb bond)