Where To - Buy Certified Mail Envelopes

: You can use your own white, manila, or recycled envelopes.

: You must fill out Form 3800 (the green sticker) at the counter or pick them up for free to use at home. where to buy certified mail envelopes

For businesses or individuals who mail frequently, online services sell specialized envelopes that allow you to print barcodes and tracking information directly from your home or office printer. USPS-Approved Certified Mail Envelopes : You can use your own white, manila, or recycled envelopes