Marketing automation for any business
Marketing AutomationPaid plans
- Personalized email marketing
- WhatsApp automation
- Powerful SMS messaging
Best Postmark Alternatives in 2026
27 similar tools you can use instead of Postmark, with pricing and key features.
Postmark
The email delivery service that people actually like
APIFree plan available
- Fast Delivery
- Deliverability & Inbox Placement
- Developer-Friendly API
- Email Types Supported
Postmark alternatives
Marketing Automation Software
Marketing Automation
- Journeys builder
- Multi-channel campaigns
- Forms and surveys
The Email Marketing & CRM Platform Teams Actually Love
E-mail marketingFree plan available
- All-in-one Email Marketing & CRM
- Fast Setup
- Easy Cancellation
Marketing built for the AI era
Customer Engagement
- Unified Customer Data Platform
- Multichannel Orchestration
- Smart Personalization
Customer Engagement Platform
Customer EngagementPaid plans
- Cross-Channel Orchestration
- AI-Powered Decisioning
- Real-Time Personalization
The Ultimate All-in-One Customer Engagement Platform
Customer EngagementFrom $8.5 / month
- 1:1 Personalization
- Automated Campaigns
- Autonomous AI Agents for Engagement
AI-Native B2B Marketing Automation Platform
Marketing AutomationAI
- Flexible Data Model
- Dynamic Email Studio
- Query Engine & Segmentation
AI-Powered Customer Engagement Platform
Customer EngagementFrom $100 / monthlyAI
- Audiences & Segmentation
- Journeys & Orchestration
- Personalization & AI
Powerful, Easy-To-Use Marketing Automation
Marketing AutomationFrom $39 / monthly
- Automated Workflows
- Personalization & Segmentation
- Onsite Popups & Lead Capture
Email marketing made easy
E-mail marketingFree plan available
- Drag-and-Drop Editor
- Segmentation & Personalization
- Automation & Onboarding Flows
Marketing Automation Software for SaaS companies
Marketing AutomationFrom $99 / Month
- Automation Triggers & Actions
- Integrations & Data Connectors
- Visual Builder & Email Design
Design emails people love to get
E-mail marketingFree plan available
- Patented layouts
- Custom fonts
- Brand colors
Marketing Software for Professional Email Marketing
E-mail marketingFrom $19/mo / Monthly
- Unlimited newsletters
- Unlimited automations
- Unlimited landing pages
AI Customer Engagement Platform for Real-Time, Personalized Experiences
Customer EngagementFrom $99 / monthlyAI
- Real-time AI decisioning
- Unified customer context
- Nova Agents
Email marketing that automates your growth
E-mail marketingFree plan available
- Landing Pages & Forms
- Email Campaigns & Automations
- Automation & Integrations
Email for modern software companies
E-mail marketingFree plan available
- Editor
- Personalization
- Themes
Email & SMS Marketing Platform
E-mail marketingFree plan available
- Automations
- AI-powered personalization
- Marketing analytics
Create Email Marketing Your Way
E-mail marketingFree plan available
- Email campaigns
- Automations
- Landing pages
Transactional Email API Service For Developers
APIFree plan available
- Send emails
- Optimize emails
- Validate emails
The Agentic Customer Engagement Platform
Customer EngagementFrom $199 / per monthAI
- Analytics & Insights
- Cross-Channel Marketing
- Web & App Personalization
The World's Leading Customer Engagement Platform
Customer EngagementFree plan available
- Journeys
- Segmentation
- Personalization
Open-Source Transactional Email Platform
APIFree plan availableOpen SourceSelf-hosted
- Inbound Email
- Workflows
- Segments
Email for developers
APIFree plan available
- Modular Webhooks
- Test Mode
- Editor
SendGrid Email API and Email Marketing Campaigns
API
- Email API & SMTP
- Email campaigns
- Deliverability tooling
Communications APIs with AI and data for SMS, Voice, Email
APIFree plan available
- Messaging
- Voice
Behavior-Based Customer Messaging. Perfect for Your SaaS Business — Userlist
E-mail marketingFrom $149/month / monthly
- Dynamic Segments
- Conversion Goals
- A/B Testing
A complete email platform for Developers to Send, Receive & Reply
APIFrom $3.50/domain/mo / monthly
- Transactional Email Sending
- Threaded Email Reception
- AI Agent Integration for Email
Frequently Asked Questions
What is Postmark?
Postmark is an API tool: The email delivery service that people actually like. It has a free plan. Key features include Fast Delivery, Deliverability & Inbox Placement, Developer-Friendly API and Email Types Supported.
Are there free alternatives to Postmark?
Yes. Bento, EmailOctopus, Flodesk, Kit, Loops and 7 others have a free plan. Postmark also has a free plan.
Is there an open-source alternative to Postmark?
Yes. Plunk is open source.
Which Postmark alternatives are paid-only?
CleverTap: From $8.5 / month. Customer.io: From $100 / monthly. Drip: From $39 / monthly. Encharge: From $99 / Month. GetResponse: From $19/mo / Monthly.
Which Postmark alternative can I self-host?
Plunk can be self-hosted.