Physical business mail, handled online
Send business letters without running a mailroom.
Upload a PDF or connect your workflow. PostBridge prints and mails it, then keeps the tracking and mailing record together. Your team stays in control without printing, stuffing envelopes, or making post-office runs.
Available for US, UK, and France · 14-day first trial · 20+ integrations · GDPR compliant · SOC 2 aligned
For regulated documents, invoices, statements, direct mail, shipping labels, and relationship-building campaigns — sent by teams or AI agents.
11
Postal products
Letters, stamps, labels, tracked and verified delivery options.
20+
App integrations
Clio, Salesforce, QuickBooks, HubSpot, Google Sheets, Canva, cloud drives, and more.
3
Countries supported
Available for US, UK, and France.
25+
API endpoints
REST endpoints for sending, tracking, proof, wallet, and settings.
8
MCP tools
Hosted MCP so AI agents can quote, send, track, and fetch proof.
Customer references
Trusted by teams that still need the mail to arrive.
Koffex
Accounting · US
Rudy Tax & Accounting
Accounting · US
MoZ Consulting
Partner · FRHow it works
From document to proof, in one controlled workflow.
Send a letter from the document your team already has. PostBridge keeps the upload, quote, approval, dispatch, tracking, and proof together.
Upload a PDF
Upload the PDF you already have, or create a letter in the workspace. The document becomes the job record that everything else attaches to.
Confirm the recipient
Check the address against the recipient record and confirm who the letter goes to before anything is printed.
Review the quote
Your team sees the cost before letters, stamps, labels, or bulk campaigns are approved.
Send after approval
Nothing prints until someone on your team approves the quoted job. The approval is logged on the record.
Tracking and proof
Each send creates a record with the job, recipient, status, tracking, and proof artifacts.
You can explore the workspace before sending. Quotes, postage, stamps, labels, tracking, and proof stay attached to the job record.
Capabilities
The all-in-one post office inside your office.
Use one workspace for documents, contacts, postage, labels, campaigns, tracking, and proof.
Letters and documents
Turn a PDF into a printed, posted letter with the quote, approval, and delivery record kept on the job.
20+ integrations
Connect Clio, QuickBooks, Salesforce, HubSpot, Google Sheets, Canva, cloud drives, CRMs, and accounting tools.
Contacts and imports
Bring contacts and recipient lists into PostBridge so your team does not retype addresses.
Postage and labels
Combine USPS stamps and USPS/FedEx shipping labels with the same records used for letters, recipients, tracking, and proof.
Automation and API
REST API, MCP tools, and GPT Actions connect postal output to your document automation.
Bulk mail and campaigns
Send high-volume customer mailings, reminders, offers, and relationship campaigns from approved lists.
Integrations
Connect PostBridge to the tools where your work already starts.
Import contacts, pull documents, and automate document-to-mail workflows across CRMs, finance tools, legal systems, spreadsheets, design tools, and cloud storage.
Legal and matter management
Clio and legal workflows for client letters, notices, and matter-linked mail records.
Finance and accounting
QuickBooks, Zoho Books, Zoho Invoice, Harvest, and invoice or customer mailing workflows.
CRM and marketing
Salesforce, HubSpot, Zoho CRM, Dynamics 365, and campaign-ready customer lists.
Spreadsheets and files
Google Sheets, Airtable, Google Drive, OneDrive, Dropbox, SharePoint, Google Docs, and Canva.
Who it's for
Built for teams and industries that still need postal document outflow.
Some workflows still require paper, delivery records, or mailed customer communications. PostBridge keeps those workflows inside the business instead of sending people to the post office.
Legal offices
Send demand letters, client notices, signed correspondence, and formal documents with a clear record of what was sent and when.
See legal workflows →Finance & accounting
Send statements, invoices, client letters, tax notices, payment reminders, deadline requests, and regulated correspondence from one accountable workflow.
Explore business mail →Real estate
Send lease notices, disclosures, HOA letters, tenant communications, and transaction documents with tracking and proof.
Start with lease notices →Marketing professionals
Connect HubSpot, Salesforce, Canva, and customer lists to create direct mail campaigns, postcards, reminders, and bulk mail that builds real customer relationships.
Plan a campaign →For industries where mail still has to happen, but the old process does not.
Healthcare administration
Insurance
Credit and collections
Public sector and nonprofits
HR and compliance
Franchise and field operations
Professional services
For marketing teams
Direct mail campaigns connected to your CRM and creative tools.
Marketing teams can connect HubSpot and Salesforce for audiences, use Canva for creative, and send bulk mail or postcards to customers who deserve more than another email.
Use PostBridge for win-back campaigns, VIP notes, renewal reminders, local promotions, appointment prompts, and customer appreciation mail. The goal is not more paper. The goal is meaningful customer contact that your team can measure and repeat.
Trust
Mail is sensitive. PostBridge treats it that way.
Your documents, addresses, contact lists, labels, and recipient data are handled for the postal workflow. PostBridge is GDPR compliant and SOC 2 aligned.
GDPR compliant
Built for privacy-conscious teams that handle customer, client, patient, student, or recipient data.
SOC 2 aligned
Security controls are designed around the standards professional teams expect from workflow software.
Quote before send
The quote is itemized before anything is approved, and checkout matches the quote.
Named proof, kept seven years
Every job keeps its dated dispatch record and tracking reference. Where the carrier issues a proof document we download it and keep our own copy, downloadable for seven years — carrier links die in days. Where the carrier holds the signature, we link you straight to it.
Private by design
Documents and contact data are used for the postal workflow, not sold or used to train AI models.
Human-readable records
Your team can understand what was sent, where it went, what it cost, and what happened next.
Pricing
14 days free on your first trial. Then one subscription.
Business/Profile includes the workspace, apps, integrations, five licensed Team members, and unlimited free viewers. Postal usage remains separate and is quoted before approval.
Business/Profile · five licensed Team members included
Start free trial
$39 / £35 / €37 monthly
$390 / £350 / €370 annually, with 2 months free. Each licensed Team member from the 6th onward is $9.99 / £9.99 / €9.99 monthly or $99 / £99 / €99 annually.
An eligible workspace receives one 14-day first trial. A qualifying carrier-QR first trial lasts exactly 28 days instead of the standard 14 days. Trials do not stack, and there is no second trial. Licensed roles and pending licensed-role invites reserve capacity. For Business/Profile workspace API keys, MCP, and OAuth, each send/full credential is attributed to a nominated sponsor’s existing licensed Team member slot. Creating a credential does not add or reserve licensed capacity. Read-only credentials use no sponsor slot. Clio OAuth and direct REST x402 are separate pay-as-you-go (PAYG) rails.
Prices exclude tax. Connection region is only a display preview; billing country confirms currency at checkout. Postal usage is charged separately.
Enterprise & high-volume mail
Contact us
Custom quote
Enterprise and high volume mail: contact us for a custom quote and integration. Volume rate card, committed pricing, bulk and API throughput, and named onboarding.
Switching from Stamps.com, a franking machine, or a postage meter?
Check switching eligibility
Bring your outbound mail across without the hardware.
Upload a recent invoice from your current provider — eligibility is reviewed manually, and every send stays quote-before-approval.
Postal pricing, organized by country.
United States
USPS · 3 servicesUnited Kingdom
Royal Mail · 6 servicesFrance
La Poste · 2 services
One-page quote scope
Every total below includes one-page printing, mail preparation, postage, and the uniform PostBridge service fee. Final checkout remains authoritative.
United States
USPS · USD
3 services
| Postal service | B&W | Color |
|---|---|---|
| First Class No tracking and no delivery record. | $1.03 | $1.24 |
| Certified Mail Proof: signature captured by USPS, retrievable at any time from usps.com. Dated dispatch record and tracking number kept on the job. Electronic Return Receipt available as a quoted +$2.91 option. | $8.43 | $8.64 |
| Priority Mail Proof: USPS tracking to delivery. No signature captured. | $14.02 | $14.23 |
United Kingdom
Royal Mail · GBP
6 services
| Postal service | B&W | Color |
|---|---|---|
| 1st Class No tracking and no delivery record. | £1.84 | £2.05 |
| 2nd Class No tracking and no delivery record. | £1.31 | £1.52 |
| 1st Signed For Proof: signature captured by Royal Mail, retrievable at any time from royalmail.com. Dated dispatch record and reference kept on the job. | £3.89 | £4.10 |
| 2nd Signed For Proof: signature captured by Royal Mail, retrievable at any time from royalmail.com. Dated dispatch record and reference kept on the job. | £3.41 | £3.62 |
| Special Delivery 1pm Proof: guaranteed timed delivery with signature, retrievable at any time from royalmail.com. Dated dispatch record and reference kept on the job. | £8.51 | £8.72 |
| Special Delivery 9am Proof: guaranteed timed delivery with signature, retrievable at any time from royalmail.com. Dated dispatch record and reference kept on the job. | £14.81 | £15.02 |
France
La Poste · EUR
2 services
| Postal service | B&W | Color |
|---|---|---|
| Lettre Verte No tracking and no delivery record. | €1.41 | €2.07 |
| LRAR Proof: preuve de dépôt and the signed avis de réception, stored by PostBridge as PDFs and downloadable for seven years. | €8.58 | €9.24 |
What proof you get, where it lives, and how long we keep it.
United States — USPS Certified Mail: USPS captures the recipient signature and keeps it on usps.com, where you can retrieve it at any time. PostBridge keeps the dated dispatch record, tracking number and delivery status on the job, with a prefilled link to the USPS record. The USPS Electronic Return Receipt can be added to Certified Mail as a quoted $2.91 option; the paper PS Form 3811 is not offered.
United Kingdom — Signed For and Special Delivery: Royal Mail captures the signature and keeps it on royalmail.com, where you can retrieve it at any time. PostBridge keeps the dated dispatch record and the tracking reference on the job, with a prefilled link to the Royal Mail record.
France — Lettre Recommandée avec AR: La Poste issues a preuve de dépôt and a signed avis de réception. PostBridge downloads both and stores its own durable copies, because carrier links expire within days and La Poste drops its copy after three years — after year three, ours may be the only copy of your avis de réception.
Retention — seven years: stored postal proofs stay available for download for seven years, matching the business-record period. After that the retention sweep deletes the file and keeps a non-downloadable audit stub recording that the proof existed, when it was issued and when it was purged. Letter content is separate and much shorter: 90 days after fulfillment, 30 days if a send failed, expired or was refunded, and uploaded files are cleared within about 30 minutes.
Printing options are built into every row. B&W and color show the complete one-page total. More pages, format changes, taxes, and campaign quantities update the live quote before approval.
Access options
One postal workspace. Every surface.
Work on the web, Android, or inside ChatGPT today. The iOS app is coming soon, with shared records across every surface.
Developer API/MCP
Ready for automation? PostBridge also works with APIs and AI agents.
When your team is ready to connect postal output to document automation, PostBridge supports API, MCP, GPT Actions, SDKs, and agent workflows.
REST API
Send, quote, and track endpoints.
MCP tools
An MCP server for Claude and other agents.
GPT Actions
Postal tasks inside the PostBridge GPT app.
SDKs
Typed clients for common languages.
FAQ
Questions before you send?
Where is my proof of delivery kept?
It depends on the service. For a Lettre Recommandée avec AR we download the preuve de dépôt and the signed avis de réception and keep our own copies, downloadable for seven years — longer than La Poste keeps theirs. For Royal Mail Signed For and Special Delivery the signature stays on royalmail.com, and for USPS Certified Mail on usps.com; in both cases you can retrieve it at any time. In every case PostBridge keeps the dated dispatch record, tracking number and status on the job and links you straight to the carrier record.
Do I need a postage meter or franking machine?
No. PostBridge is designed to replace the office process around printing, postage, labels, and tracking.
Can PostBridge import contacts?
Yes. Imports run from Google Sheets, Clio, QuickBooks, Salesforce, HubSpot, and the other listed integrations.
Can I print stamps and shipping labels?
Yes. USPS stamps for US customers, plus USPS and FedEx shipping labels from the app.
Can marketers use PostBridge for campaigns?
Yes. Marketers can connect HubSpot, Salesforce, Canva, and customer lists to create and send direct mail and bulk mail campaigns.
Is PostBridge only for AI agents?
No. The main app is built for people and teams. API and AI-agent workflows are available when you need automation.
What happens to my documents and contacts?
Documents and contact data are handled for the postal workflow. They are not sold or used to train AI models.
Start free
Bring the post office into your document workflow.
Start with a letter, contact import, stamp, label, or campaign. Review the quote. Approve the action. Keep the proof.
14-day first trial · 20+ integrations · USPS stamps · USPS/FedEx labels · Bulk mail · Android app · PostBridge GPT app