Certified Mail Services
MPA runs bulk USPS Certified Mail for legal, collections, compliance and government teams. We print each letter from your file, apply the certified label and barcode, enter the mail at the Lakeland BMEU and send back a proof-of-delivery report with tracking and any return receipts. Time-sensitive notices can be scheduled to a mail-by date.
- In-house since 1989
- SOC 2 Type 2 audited
- 100+ 5-star reviews
Best for businesses sending batches or recurring certified mail, not one-off personal letters. For a general inquiry, use our contact page.
What's Included
- Printing from your file. Letters, notices and documents print from your data, with every address pulled straight from your list instead of keyed by hand.
- Certified labels and USPS entry. Each piece carries the USPS Certified Mail label and tracking barcode, and we take the mail to USPS ourselves, so tracking starts the day we hand it over.
- Return receipts. The green card (PS Form 3811) or an electronic return receipt, chosen per program.
- Proof-of-delivery report. Each piece's tracking number, delivery status and date, plus the signature when you add a return receipt.
- Secure data handling. File intake and production under SOC 2 Type 2 audited controls, with HIPAA-compliant handling for protected health information.
Certified Mail Options and Specs
USPS fees are per piece, from USPS Notice 123, effective July 12, 2026.
| Option or spec | What you get | USPS fee or detail |
|---|---|---|
| Certified Mail | A mailing receipt and tracking; USPS keeps a delivery record with the recipient's signature | $5.55 per piece, plus First-Class Mail postage |
| Certified Mail Restricted Delivery | Delivery only to the person named on the letter or their authorized agent | $14.35 per piece, plus First-Class Mail postage |
| Return receipt, green card (PS Form 3811) | The signature and delivery date on a card mailed back to you | $4.65 per piece |
| Electronic return receipt | The same signature and delivery details as a digital file sent by email | $2.91 per piece |
| Regular First-Class Mail letter, no certified service | No mailing receipt or delivery record, for letters that do not need proof | $0.707 per 1 oz letter (First-Class letter rate, presort Mixed tier, mailings of 500 or more) |
| Volume | One-time batches or recurring programs | From under 100 pieces to many thousands per run |
USPS postage and fees appear on their own lines of the itemized written quote and the invoice.
How It Works
- Request a quote. Tell us your volume, the return receipt you need and how often you mail, through the quote form or by phone at (863) 687-6945.
- Send your list and letters. After intake we send secure transfer instructions for your recipient list and documents.
- Approve the proof. We set up your certified and return receipt options and send a proof. Nothing prints until you sign off.
- We print, label and mail. Each piece is printed, labeled and barcoded, then entered with USPS at the Lakeland BMEU on your mail date.
- Delivery and proof. USPS records the recipient's signature at delivery, and a return receipt sends you a copy. Your report follows each mailing.
Turnaround: the mail date is set in your quote, and First-Class Mail delivers in 3 to 5 business days after USPS entry.
Certified Mail Services FAQ
What does bulk certified mail cost?
USPS charges $5.55 per piece for Certified Mail, plus First-Class Mail postage, and a return receipt adds $4.65 for the green card (PS Form 3811) or $2.91 for the electronic version (USPS Notice 123, effective July 12, 2026). For a 1 oz letter in a presorted mailing of 500 or more, at the First-Class letter rate of $0.707 (Mixed), that comes to about $9.17 with the electronic receipt or $10.91 with the green card; smaller mailings pay single-piece postage instead. We price printing and handling per job, and USPS postage and fees appear on their own lines of the itemized written quote and the invoice.
Can you send certified mail in bulk?
Yes. A whole list goes out as one run, as a one-time batch or a recurring daily, weekly or monthly program, and every piece gets its own certified label and tracking number.
Can you mail certified letters by a deadline?
Yes. Tell us the date the letters must be in the mail when you request a quote, and a time-sensitive notice can be scheduled to that mail-by date. After USPS entry, certified letters travel at First-Class Mail speed and deliver in 3 to 5 business days.
What is the difference between a return receipt and an electronic return receipt?
Both give you the signature and the delivery date as proof of delivery. The green card, PS Form 3811, comes back to you by mail; the electronic return receipt arrives by email as a digital file, so it is faster to receive, easier to archive and costs less. Choose the green card when a rule or a court calls for the physical card. If a paid green card never comes back, USPS lets the sender request the delivery record within 90 days on PS Form 3811-A. We run both.
What proof of delivery do I get back?
A report for each mailing that you can hand to an auditor or add to a case file: this letter went out on this date and was delivered on that date, with the delivery time where USPS records it and, when you add a return receipt, the signature. Each tracking number can also be checked on USPS.com, and we keep each report on file, so you can ask us for one recipient's record later.
Can you send certified mail to a PO box?
Yes. USPS leaves a notice in the box, and the recipient signs for the letter at the post office counter. The signature is recorded the same way as at a street address, so a return receipt works the same way. PO box recipients go out in the same run as street addresses.
What happens if a certified letter is refused or not picked up?
If no one is there to sign, USPS leaves a notice and holds the letter. If it is not picked up or redelivered, USPS returns it to the sender after 15 days, unless the sender sets fewer days on the piece. The recipient can also refuse it when it is offered. Tracking shows each outcome, and refused or unclaimed pieces appear in your report next to the delivered ones.
Guide: Certified Mail in Detail
Certified Mail is an extra service added to First-Class Mail or Priority Mail. It proves mailing and delivery, but it adds no insurance and does not speed delivery: the letter travels as ordinary mail.
Why Teams Switch
Still Doing Certified Mail by Hand?
By hand, every certified letter means a label and a green card filled out separately, a tracking number copied into a spreadsheet, and a tray carried to the post office. The proof then lives in two places: a drawer of returned cards and a folder of mailing receipts.
That breaks down as volume grows. A paralegal who can mail twenty certified letters in a morning cannot mail two thousand, and one transposed digit, a label that peels off or a piece that never gets logged leaves a gap in the proof.
In production, every piece is captured in the run record, so the proof is complete however large the mailing.
Who It Is For
Who Uses Managed Certified Mail
Law firms and legal teams
Demand letters and notices that must be provable often go by certified mail with a return receipt. Law firms can send them through us in batches, with proof of delivery for every piece. See how we support legal teams.
Collections agencies
Collectors send validation notices and other letters by certified mail where documented delivery matters. We produce them in bulk and return the proof with each run.
Compliance and healthcare
When a regulatory notice needs a record that it was sent and delivered, certified mail provides one. Protected health information gets HIPAA-compliant handling from intake to mailing.
Government agencies
Public notices, hearing notices and official correspondence often call for certified delivery and a documented record. As a Florida State Term Contract 80141800-25-STC vendor, MPA produces certified mail for government teams.
Compare the Options
Certified vs Registered vs First-Class Mail
Registered Mail, the most secure service USPS offers, is built for high-value items, and regular First-Class Mail carries no proof of delivery. Certified Mail sits between them. If you only need to show that a notice was mailed, a Certificate of Mailing (PS Form 3817, or a firm sheet for three or more pieces) is USPS evidence of mailing with no record of delivery. USPS also notes that some statutes for mailing legal documents may require Certified Mail or Registered Mail rather than USPS Tracking.
| Feature | Certified Mail | Registered Mail | First-Class Mail |
|---|---|---|---|
| Proof of mailing | Yes, mailing receipt | Yes, mailing receipt | No |
| Tracking | Yes, end to end | Yes, with custody scans | No standard tracking |
| Signature and delivery record | Yes. USPS keeps the delivery record with the recipient's signature; a return receipt sends you a copy | Yes, signature required | No |
| In-transit security | None added; handled in transit as ordinary mail | Added; custody recorded from acceptance to delivery | None added |
| Cost tier | Moderate add-on to postage | Highest add-on to postage | Postage only |
| Typical speed | Same as First-Class Mail | Slower, handled securely | Standard First-Class delivery |
| Best for | Legal notices, compliance letters, demand letters | High-value or irreplaceable items | Everyday business mail with no proof needed |
Request a Quote
Request a Certified Mail Quote
Send us your expected volume and mailing schedule, and we reply with a written quote, no obligation.
Prefer to talk it through? Call (863) 687-6945.
We got your request
Our team will email you a tailored quote within one business day.
Need to move fast? Call (863) 687-6945.
Veteran-Owned | Florida State Term Contract 80141800-25-STC Vendor | Since 1989 | SOC 2 Type 2 | HIPAA Compliant