Postmark helps you stop worrying if your emails made it to the inbox, and get back to focusing on what matters—building great products. Send transactional and marketing emails and get them to the inbox on time, every time.

Marigold Engage (Sailthru) is a powerful, flexible, and configurable relationship marketing solution that allows organizations of all sizes to build and launch marketing campaigns, fine-tune segments, create highly personalized offers and messages, optimize and refine tactics, increase conversions, and drive more revenue.

Feature Comparison

Postmark and Marigold Engage by Sailthru both have great feature sets so the right tool for you really depends on your needs.

FeaturesPostmarkMarigold Engage by Sailthru
💸 Paid Subscriptions

Accept paid subscriptions

➗ Segmentation

Create segments of subscribers

🤖 Automation

Automate actions based on behaviors

📩 Embeddable Forms

Embeddable subscription forms

📄 Landing Pages

Create landing pages for your newsletter

🔌 3rd Party Integrations

Connect to other services

🖊️ Visual Editor

Drag and drop email editor

📝 Markdown Editor

Write emails in markdown

👩‍💻 HTML

Design emails with HTML text

⚒️ API

Integrate with the platform's API

📈 Analytics

Get data on your emails' performance

🌍 Custom Domain

Use a custom domain for your page

🗣️ Referrals

Setup a referral program

💽 Self Hosting

Host on your own server

📢 Recommendations

Recommend and be recommended by other newsletters

Price Comparison

Learn More

Compare Postmark to other tools

See how Postmark stacks up to these other services.

VS

Postmark vs Constant Contact

VS

Postmark vs Substack

VS

Postmark vs beehiiv

VS

Postmark vs Mailchimp

VS

Postmark vs EmailOctopus

VS

Postmark vs Sendy

VS

Postmark vs Ghost

VS

Postmark vs MailerLite

VS

Postmark vs Klaviyo

VS

Postmark vs SendFox

VS

Postmark vs Drip

VS

Postmark vs Kit (ConvertKit)

Email’s still the MVP—but only if you know how to use it. Get weekly, no-fluff insights on deliverability, list growth, and engagement with Audience Bridge Insights.

This page may include affiliate links. When you buy through these links I may earn a small commission at no additional cost to you.