Direct mail built for your industry.
Every industry has unique direct mail needs: compliance requirements, response-rate benchmarks, seasonal timing, and audience expectations. MailStream adapts to all of them.




Industries
Built for every industry.
From e-commerce to healthcare to financial services, MailStream adapts to your workflow, helping you activate, personalize, and deliver physical mail at scale without added complexity.

E-commerce & Retail
Transform online orders into offline loyalty with thank-you postcards, win-back campaigns, and seasonal mailers integrated with Shopify and Klaviyo.

Healthcare
Send appointment reminders, EOBs, lapse notices, and patient outreach through a HITRUST-aligned pipeline. HIPAA-friendly print on every piece you send.

Financial Services
Automate statements, disclosures, and tax documents with built-in certified-mail and proof-of-delivery tracking. Print compliance teams trust.

Real Estate
Send farming postcards, open-house invites, and listing alerts triggered from your CRM. Radius mailing around any new listing in under 24 hours.

Agencies & Resellers
Offer direct mail to clients without managing infrastructure. White-label support, shared-team access, and budget guardrails built in.

SaaS & Technology
Re-engage users, send onboarding kits, or trigger handwritten notes off any product event. Built for engineering teams that ship every day.
Why MailStream
The platform adapts. The pipeline doesn’t change.
Regardless of your industry, every mail piece flows through the same API, the same 24-hour print pipeline, and the same USPS delivery network. What changes is how you trigger it.
- 5-9x
- Higher open rate than email
- 25+
- Years of direct mail expertise
- 24hr
- Print-to-ship turnaround
- 12
- MCP tools for AI agents
- We are the manufacturer.
- No middlemen or third-party brokers. We control production and USPS entry, ensuring unmatched cost and speed.
- 24-hour turnaround.
- Most platforms quote 3-5 business days. We print and hand off to USPS within 24 hours. For time-sensitive campaigns, that difference is everything.
- AI-agent ready.
- Our MCP server lets AI agents send physical mail autonomously. No other direct mail platform offers this. We are the first and only.
What everyone is saying
Trusted by professionals.
We replaced three vendors with MailStream and finally got full visibility from print to delivery. Tracking every piece in real time changed how we measure direct mail.
Daniel H.
VP of Growth, Northbridge Labs
The HTML design tool is a game changer. We design, personalize, and send without ever leaving the platform. No more emailing PDF proofs back and forth.
Olivia W.
Head of Lifecycle, Beacon Insurance
We integrated the API in a day and had automated compliance notices running by the end of the week. The HITRUST certification made our security team very happy.
Ethan K.
Engineering Lead, Atlas Health
Join agencies, SaaS teams, and operators using MailStream to automate direct mail at scale, without manual vendors or guesswork.