Transform how you send documents and collect signatures at scale.
MassMailer lets you send personalized documents to hundreds or thousands of recipients while maintaining security and compliance. Import your recipient list from a spreadsheet, customize your forms, and track everything from one dashboard.
Key Features
- Send documents to multiple recipients at once
- Pre-fill forms with recipient information
- Collect data through secure, signed forms
- Track completion status in real-time
- Export collected data to spreadsheets
- Save templates for repeated use

How to Use MassMailer
- Create your recipient list in a spreadsheet
(formatting instructions) - Log in and start a new MassMailer transaction
- Import your spreadsheet
- Add your documents and place signature fields
- Send to all recipients
- Track progress from your dashboard
For detailed instructions, visit our Knowledge Base.
Real-World Applications

Financial Services
When wealth management firms acquire new advisors, they face the challenge of onboarding hundreds of client accounts quickly while maintaining regulatory compliance. MassMailer streamlines this process by sending personalized welcome packets and collecting required documentation—all with a complete audit trail for regulators.

Healthcare
Clinical research organizations must regularly collect consent forms and patient documentation across multiple study sites. MassMailer helps maintain compliance with HIPAA and 21 CFR Part 11 by distributing forms to all participants, tracking responses, and storing signed documents with tamper-evident seals.

Government
State agencies often need to distribute policy updates or collect annual certifications from thousands of constituents. MassMailer makes this manageable by automating distribution, tracking acknowledgments, and providing status reports—while maintaining the security standards government entities require.

Legal Operations
Large law firms and corporate legal departments frequently need to distribute NDAs, policy updates, or engagement letters to multiple parties simultaneously. MassMailer simplifies this process by automating document distribution, tracking signatures, and maintaining the chain of custody required for legal documentation.

Common Uses
- Client onboarding paperwork
- Annual information updates
- Policy change notifications
- Employee documentation
- Regulatory notices
- Consent form collection
Security & Compliance
- Built on SIGNiX's secure signature platform
- Tamper-evident documents
- Complete audit trails
- Independent verification
- Flexible authentication options, including AI-driven facial biometrics and credential analysis
Getting Started
Download our sample files to try it yourself, or contact us for a personalized demo. Current SIGNiX customers can access MassMailer through their MyDoX account.
View implementation examples in our GitHub repository.
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