Trusted by 1000+ Customers
Enterprise-Grade Bulk Mailing Infrastructure
Create, print, and ship mail pieces without volume restrictions.
- High-Volume Print & Mail Fulfillment
Send any volume of mail without handling printing, folding, stuffing, sorting, or postage manually. - Built-in Mailing List Verification
Verify mailing lists against the official USPS database to prevent returned mail or wasted postage. - Delivery Tracking & Campaign Visibility
Complete visibility for individual mailpieces throughout the mailing journey from a unified dashboard.
Why Manual Bulk Mailing Workflows Break at Scale
Traditional direct mail processes are fragmented, opaque, and expensive.
Vendor coordination & manual file prep (printing, folding, stuffing, postage, and sorting) delays launches by weeks.
Coordinating designers, print vendors, and mailing lists across tools creates error-prone handoffs and missed send windows.
Without tracking infrastructure, you have no data on whether a piece was delivered, returned, or engaged with after it leaves your hands.
Workflows built for hundreds of pieces collapse under thousands. Scaling manually means scaling headcount, not efficiency.
No native CRM or ESP integrations force manual data exports, creating sync errors and compliance risk across every campaign.
Legacy vendors are limited to basic letters. Enterprise campaigns require postcards, self-mailers, and more without re-platforming.
Without print optimization and automation, costs per piece balloon at volume, eroding ROI before a single piece is opened.
Sending to unverified addresses wastes budget, inflates return mail costs, and corrupts campaign attribution data entirely.
Why Businesses Choose PostGrid Bulk Mailing
Automated solution with a single, API-driven platform that scales from hundreds to millions of pieces without adding operational overhead.
01
Automated Processing
Configure once and execute at any volume. PostGrid handles template rendering, address validation, print production, and dispatch, with no manual steps required.
02
Real-Time Campaign Tracking
Monitor production status, delivery progression, and engagement (via PURLs and QR codes) for every piece in real-time.
03
Concurrent Campaign Execution
Run multiple campaigns simultaneously across distinct mailing lists, formats, and templates, all from a single API or dashboard.
04
Lower Operational Burden
No need to invest in in-house printers, paper, storage, toners, and a dedicated staff to manage high-volume campaigns.
05
Multi-Carrier Global Delivery
Dispatch via USPS, Canada Post, UPS, Royal Mail, and Australia Post with consistent quality across domestic and international sends.
06
Native CRM & Integration
Connect directly to Salesforce, HubSpot, Zapier, Stripe, Klaviyo, and ActiveCampaign; no middleware or manual data sync required.
07
Faster Campaign Turnaround
Automated workflows help businesses avoid juggling between vendors while ensuring a 2-day SLA for mailing.
08
Built-In Audience Targeting
Programmatically build US consumer (B2C) and US company (B2B) mailing lists using demographic, geographic, income, industry, and firmographic filters.
Core Features to Empower Bulk Mailing Workflows
The complete toolbox to automate bulk mailing campaigns with personalization, exclusivity, smart routing, and integration support.
Use the HTML template editor to customize logos, fonts, colors, and layouts in bulk mailers while aligning with specific branding rules.
Merge variables to dynamically personalize specific recipient data in individual mailpieces with VDP technology, increasing relevance.
Access the distributed print and delivery network, routing printing jobs to the nearest facility to the recipient, and reducing the delivery timelines.
Manage high-volume campaigns by uploading CSV files with recipient lists, campaign data, and mailing details to avoid manual data entry.
120lb glossy, single-sided UV glossy, 120lb UV glossy, and double-sided satin options are available for better durability and brand presentation.
Access the B2C and B2B list builder to create highly targeted bulk mailing lists based on geo-demographics and firmographics.
Receive return mail at a dedicated address to sync move update data and return envelopes to maintain clean records and stop wastage.
Connect the API using native SDKs, Test Keys, SFTP, and a sandbox environment to empower IT teams and cut countless development hours.
End-to-End Bulk Campaign Visibility
Monitor every mailpiece and bulk mail campaign performance from PostGrid’s dashboard.
- Embed USPS Intelligent Mail barcode (IMb) to monitor individual mailer in its postal journey.
- Follow delivery milestones to lower uncertainty with carrier tracking for supported mail formats.
- Include custom QR trackers in mailers to navigate recipients to online channels and gather useful engagement insights.
- Use personalized URLs in each mailpiece to send recipients to dedicated landing pages for follow-up action or capturing response data.
Enterprise-Grade Compliance and Data Security
HIPAA
PIPEDA
GDPR
SOC 2 TYPE 2
PCI-DSS
Data Encryption
Audit Logs
Role-Based Access Control
Secure Hosting on AWS
Single Sign-On
Third-Party Penetration Testing
Continuous Monitoring
Supported Mail Formats for High-Volume Processing
Automate different types of bulk mailers through a single platform.
Postcards
Send attractive 6×4, 9×6, and 11×6 postcards.
Letters
Mail US or Legal-sized letters and documents.
Checks
Print and send checks with MICR protection.
Self-Mailers
Send bi-folds or tri-folds without envelopes.
Plastic Card Inserts
Attach plastic cards to customer mailings.
Snap Packs
Send pressure-sealed mailers for sensitive docs.
Native Integrations for Unique Bulk Mailing Use Cases
Ready to connect PostGrid with business tools to trigger bulk mail campaigns?
Salesforce
Make Salesforce workflows smarter by syncing CRM lists, account data, and campaign records for sales, retention, and customer communication campaigns.
- Territory-based mailers
- Lead reactivation batches
- Partner outreach campaigns
- Contract notice mailing
HubSpot
Convert HubSpot lists into bulk mail strategies, ideal for lead nurturing, lifecycle marketing, and event promotion.
- Webinar or event invitation batches
- MQL postcard campaigns
- Lifecycle letter campaigns
- Event reminder mailers
Zapier
Connect PostGrid with Zapier to create custom Zaps to sync or trigger bulk mail from spreadsheets, databases, forms, and other business systems without coding.
- Survey follow-up mail
- Form response batches
- Internal request mailers
- Database-triggered batches
Stripe
Make accounts operations easier with high-volume finance, collection, invoice reminder, and customer account update processing.
- Overdue invoice batches
- Payment reminder mailers
- Collection letter batches
- Tax document mailing
Klavio
Empower ecommerce workflows by syncing segments, purchase behavior, and customer groups into a bulk mail campaign within Klaviyo dashboards.
- Abandoned cart mailers
- Repeat buyer postcards
- Seasonal sale batches
- Loyalty reward mailers
ActiveCampaign
Sync contact tags, segments, and marketing automation workflows directly from the ActiveCampaign dashboard to support targeted bulk mail strategies.
- Tag-based mailers
- Nurture sequence mail
- Segment-based postcards
- Promo letter campaigns
Customer Stories
With a 5-star rating on G2, global brands love to process high-volume mail with PostGrid.
Read the Case Study
Lumata Health
The healthcare firm was facing challenges to keep up with HIPAA regulations and scale its interpersonal patient communication. PostGrid came to the rescue with its scalable infrastructure to help me automate newsletters and reduce distribution time by 50%.
Read the Case Study
Ecoflow
The global electronics manufacturer had a hard time maintaining its physical client outreach strategy due to a resource crunch. PostGrid’s Variable Data Printing capabilities supported them in client-specific personalization, increasing relevance and website visitors by 20%.
Read the Case Study
AtoB
The financial service for logistics companies was facing slow workflows while sending time-sensitive welcome letters. PostGrid’s solution automated the entire fulfillment process, improving operational agility by 40% across the organization.
Integrates with Your Favorite Tech Stack & Tools
Easily Improve your workflow and automate print & mail through seamless integration capabilities.
Frequently Asked Questions
What Are Bulk Mailing Services?
It refers to businesses printing, processing, and sending high volumes of letters, postcards, self-mailers, and checks. The purpose could be anything from marketing, communication, transactional, or reputation management.
What Is the Stock Quality of Letters and Postcards?
PostGrid uses 60lb stock for letters and 100lb stock with full gloss coating for postcards. Besides, more premium options are also available. Learn more about them here.
What Is the SLA for Bulk Mail Campaigns?
PostGrid offers an industry-leading SLA of 2 business days. It means mailers are printed, processed, sorted, and handed over to the postal service within this timeframe. The actual delivery time depends on the selected USPS mailing class.
Does PostGrid Provide a Cancellation Window?
Yes, users cancel orders until 12 am the next day before they are processed for printing.
How Can Businesses Upload Bulk Mailing Lists to PostGrid?
Businesses can upload mailing lists via CSV files, SFTP, dashboard uploads, API workflows, or supported integrations.
Can PostGrid Update Obsolete Mailing Lists?
PostGrid has built-in CASS-certified address verification capabilities. It means it can update outdated records against the USPS National Change of Address database. Hence, businesses can save their time and campaign budget by stopping mailers going to obsolete addresses.
Does PostGrid Support Certified Mail & Registered Mail?
Yes, both options are available to help users send sensitive or high-value communications with proof of mailing and delivery visibility.
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