TestSubjectZURB
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Related Products
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About
Most people decide to open an email based on two factors, the sender name and the subject line. Mobile email clients and devices often truncate subject lines and sender names, leading to sometimes hilarious but frequently disastrous results. Cringeworthy, right? We send a lot of email here at ZURB, and we needed a way to help compose perfect subject lines quickly and easily. Unable to find anything that fit the bill, we created TestSubject. TestSubject is a simple tool for testing how your email subject line and sender name look on the most popular mobile devices and email clients. Just copy and paste your text and you’ll get instant previews. Test before you send for more peace of mind. Test how your subject line displays on the most popular mobile devices and email clients. View how your sender name displays on the most popular mobile devices and email clients.
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About
Zyntra is a disposable email platform for QA teams and test automation workflows.
It helps you capture, assert, and validate email content as part of your end-to-end tests — without manual setup or flaky workarounds.
Use it to:
• Generate unlimited private inboxes automatically, with one line of code
• Trigger real emails (OTP, password resets, invites) and read them via API or Web viewer
• Prevent test emails from leaking to real users — all inboxes are private by default
• Run isolated tests in CI/CD with no collisions or cleanup
• Validate your entire email-based flow, just like in production (real SMTP)
Zyntra works with any testing framework or language and includes an official Node.js SDK for fast integration. Ephemeral inboxes are retained for 24 hours; persistent ones for at least 7 days.
Built by QA, for QA — Zyntra helps you stop babysitting test environments and focus on verifying what matters.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
Anyone searching for a tool for testing how their email subject line and sender name look on the most popular mobile devices and email clients
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Audience
AQA engineers, developers
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and Videos |
Screenshots and VideosNo images available
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Pricing
No information available.
Free Version
Free Trial
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Pricing
$9/10000 emails/month
Free Version
Free Trial
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Reviews/
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Reviews/
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationZURB
Founded: 1998
United States
zurb.com/playground/testsubject
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Company InformationZyntra
Founded: 2025
zyntra.app/
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Integrations
No info available.
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Integrations
No info available.
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