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Comparison Email on Acid vs. Postmark Email Marketing (ESP) Vendor Comparison

Email on Acid and Postmark are Email Marketing (ESP) vendors.

emailonacid.com
Email on Acid Build, test, and optimize email campaigns. They focus on Testing & Analytics.

postmarkapp.com
Postmark Transactional emails delivered quickly with high reliability. They have no reported specialities.

Email on Acid or Postmark?
Explore Blurb’s unbiased comparison, created for our community and packed with details that matter for your buying decisions.

Email on Acid

"Build, test, and optimize email campaigns."
Focused on and Testing & Analytics .
Email on Acid provides tools to streamline email workflows. It lets marketers preview emails on over 100 devices and clients, including dark mode. The platform checks deliverability and content errors, ensuring emails display as intended. This reduces quality assurance time and boosts campaign ROI.

Key Features & Benefits

Unlimited email previews
Email on Acid claims that unlimited email previews on 100+ devices ensure messages display as intended on every device.
Comprehensive testing checks
Email on Acid claims that end-to-end content and deliverability checks maximize performance, reduce QA time, and prevent errors.
Deep insights and analytics
Email on Acid claims that deep insights and analytics help drive email ROI with recipient activity data and engagement measures.

Postmark

"Transactional emails delivered quickly with high reliability."
Focused on .
Postmark ensures transactional emails reach inboxes rapidly, focusing on speed and reliability. The API and SMTP service are designed for easy integration into any tech stack, while keeping promotional and transactional emails separate to maintain deliverability standards.

Key Features & Benefits

Blazing fast email delivery
Postmark claims that transactional emails can hit inboxes in under 1 second, faster than their competitors.
Focus on deliverability
Postmark claims that they have serious street cred with inbox providers, ensuring high deliverability rates.
Great customer support
Postmark claims that their customer success team is knowledgeable and available without extra charges.
Compare all Email Marketing (ESP) Vendors Head-to-Head