Reference Standard

Outbound Mail
Pricing & Provider Comparison

When physical mail is required for legal and medical work, this is the landscape: what each provider costs, what they can do, and what it actually costs to do it in-house.

Version 1.0 · May 2026
Trellys Outbound Mail Processing automation →

The Need

Some legal and medical workflows still require physical mail. Certified service for statutory notices. Hard-copy demands and releases. Declarations pages and contracts. Email and fax don't satisfy them. The question is rarely “do we mail this” — it's “who do we use, and what does it really cost.”

This Comparison

A pricing matrix across the print-to-mail API services that serve legal and medical workflows, alongside the true all-in cost of producing mail in-house. Feature matrix shows compliance, API quality, and pricing model differences.

Section 1

Pricing Matrix

All-in pricing per piece, B&W, pay-as-you-go (no platform fee unless noted). For each mail type, the lowest price is highlighted green and the highest is highlighted red.

Mail Type TrellysPAYG · HIPAA MailformPAYG · HIPAA DocuPostPAYG · HIPAA Click2MailPAYG · SOC 2 PostGridsubscription Lob$260+/mo USPS Directpostage only · reference In-Houseall-in DIY · baseline
First Class1 page $1.35 $1.00–$2.99 $1.15 $1.45 ~$1.19–$1.49 $0.85 + $260/mo $0.73 $2.86
First Class10 pages $2.54 $5.41–$7.40 $3.85 $4.45 Quote +$260/mo $1.29 $4.55
First Class25 pages † $4.52 $12.76–$14.75 $8.35 $10.45 Quote +$260/mo ~$2.49 ~$8.25
First Class100 pages † $14.42 $49.51–$51.50 $30.85 $38.20 Quote +$260/mo ~$6.99 ~$24.50
Certified1 page, no ERR $9.17 $8.99 $10.95 ~$8.50 Quote +$260/mo $5.58 $9.77
Certified + ERR1 page $12.28 $11.89 $13.00 ~$10.55 Quote $15.00+ + $260/mo $8.48 $13.17
Certified + ERR10 pages $13.46 $16.30 $15.70 Quote Quote Quote $9.04 $14.86
Certified + ERR25 pages † $15.44 $23.65 $20.20 Quote Quote Quote ~$9.60 ~$17.25
Certified + ERR100 pages † $25.34 $60.40 $42.70 Quote Quote Quote ~$20.28 ~$42.00

Green = lowest price per row among real services. Red = highest among real services. USPS Direct (postage only, no service) and In-House DIY (the baseline if you do nothing) are shown as reference columns and not eligible for comparison highlighting.
† Documents over ~20 pages (10 sheets) are classified by USPS as flats — postage increases at this threshold and some vendors charge a flat-envelope surcharge. Prices shown use per-page rates and may run slightly low for 25+ page documents; verify with vendor for large jobs. At 100 pages most services use flat envelopes or split into multiple pieces.

Section 2

Feature Matrix

Compliance posture, pricing model, API quality, and other operational characteristics across providers.

Feature Trellys Mailform DocuPost Click2Mail PostGrid Lob USPS Directreference In-Housebaseline
HIPAA BAA Yes Yes (in-app) Yes (self-serve) No Enterprise tier only Enterprise tier only N/A Yours to maintain
Pricing Model PAYG, no platform fee PAYG, no platform fee PAYG, transparent formula PAYG, bulk discounts Subscription tiers $260+/mo + per piece Postage only Materials + labor + postage
API Quality Native Trellys integration REST, doc-centric REST, webhooks, instant key Template-driven REST, SOC 2 Best-in-class No API N/A
Address Verify Included Limited Included Included Included Included No Manual
Color Printing +$0.22/side Available +$0.10/page Available Available Available N/A Printer-dependent
Return Receipts ERR + Green Card ERR + Green Card ERR only ERR + Green Card ERR + Green Card ERR + Green Card ERR + Green Card ERR + Green Card
Minimum Volume None None None None Free starter 5,000+/mo to justify None None
Section 3

In-House Cost Breakdown

The true cost of producing mail in-house. Postage is the small number; labor is the big one. Most firms underestimate this because the labor minutes per piece are buried in salaried staff time and never accounted for.

First Class, 1 Page

USPS postage$0.73
Paper (1 sheet)$0.02
Envelope$0.06
Toner / ink$0.05
Labor (4 min @ $30/hr)$2.00
All-in$2.86

Certified + ERR, 1 Page

USPS postage (cert + ERR)$8.48
Paper (1 sheet)$0.02
Envelope + cert label$0.12
Toner / ink$0.05
Labor (9 min @ $30/hr)$4.50
Post office trip (amortized)$0.30
All-in$13.17

Labor dominates. Even at modest hourly rates, the time a staff member spends printing, folding, addressing, sealing, certifying, and walking to the post office costs more than the postage itself. At 100 certified pieces per month, in-house labor alone is roughly $450/month — before counting the post office trips or the opportunity cost of the work that staff member could be doing instead.