Mailinator
Mailinator provides email and SMS workflow testing tools for developers and QA teams to automate verification of transactional messages.

Litmus is an email marketing platform offering tools for email building, testing, deliverability monitoring, personalization, and analytics.
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Litmus provides capabilities for designing, testing, and personalizing emails, monitoring deliverability and email performance, and managing approvals and collaboration across teams.
Updated Oct 17, 2026.
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Move faster with AI-assisted email building and testing across 100+ email clients.
Catch errors before subscribers do with 24/7 monitoring of deployed emails.
See exactly where your campaigns land and fix problems before they cost you revenue.
Benchmark your sends against millions of real emails.
Spot what’s trending right now and pull it straight into your own campaigns.
Get 24/7 alerts for issues that might impact your subscriber experience, like failing links and broken renders from client updates.
Quickly preview your email in 100+ clients and devices and fix errors fast.
Cut review time in half with a centralized place to collect feedback and approvals.
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Mailinator provides email and SMS workflow testing tools for developers and QA teams to automate verification of transactional messages.
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