How to Send a Certificate of Mailing
Step 1: Visit Our BulkMail Service: get started
Step 2: Upload Your Documents Upload the files you want inserted into each envelope - we support various formats, but specify as needed
Step 3: Specify Certificate Requirements Using our CSV template, specify "PS-3665" in the right column of your address file and indicat which PDFs go into which envelop as needed. Remember, one row is one envelope.
Step 4: We Handle Everything We print, apply postage, complete PS-3665 forms, mail your items, and return your certificates
Why Choose Mailform for Certificate of Mailing?
Skip the post office lines - handle bulk mailings from your desk
Professional PS-3665 form completion ensures USPS compliance
Instant PDF certificates with optional physical delivery
Bulk pricing makes it cost-effective for large mailings
Perfect for legal notices, business correspondence, and compliance mailings
Track your entire mailing process through our platform
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