Average Ratings 0 Ratings
Average Ratings 0 Ratings
Description
HELO is a desktop application that streamlines the email testing and debugging process for web developers by capturing and analyzing outgoing emails produced by applications in the development phase. Rather than dispatching emails to actual recipients, HELO offers a local SMTP server that intercepts these messages and presents them within the application, enabling developers to review and validate them prior to launching. This method is instrumental in avoiding frequent issues such as broken links, missing images, formatting mistakes, and other errors that can surface in live emails. It delivers comprehensive debug views that showcase the email in various formats, including HTML rendering, plain text, raw source code, and complete message headers, thus providing developers with an in-depth understanding of the email's structure. Additionally, automated validation tools are employed to check links within the email, ensuring they yield valid HTTP responses, which significantly mitigates the chances of sending emails that contain invalid or broken URLs. By integrating these features, HELO not only enhances the development workflow but also promotes confidence in the quality of email communications before they reach end users.
Description
Zyntra simplifies email testing for both automated and manual QA processes. For automated testing, it offers temporary mailboxes that provide unique email addresses for each test run, ensuring isolated and predictable test environments. With seamless integration into your existing testing workflows, Zyntra eliminates issues like flaky inboxes and unreliable email services. For manual testing, Zyntra provides persistent mailboxes with long retention periods, enabling easy tracking of multi-step processes and collaboration across teams. It also integrates with various testing tools via API or UI for fast and reliable test email retrieval.
API Access
Has API
No
API Access
Has API
No
Screenshots View All
No images available
Integrations
HTML
No
Pricing Details
$49 per month
Free Trial
No
Free Version
Yes
Pricing Details
$9/10000 emails/month
Free Trial
No
Free Version
Yes
Deployment
Web-Based
No
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
Yes
Linux
No
Chromebook
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
Yes
In Person
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Vendor Details
Company Name
Beyond Code
Founded
2017
Country
Germany
Website
usehelo.com
Vendor Details
Company Name
Zyntra
Founded
2025
Website
zyntra.app/
Product Features
Email Testing
A/B Testing
No
Accessibility Testing
No
DMARC Analytics
No
Deliverability Rates
No
HTML Validation
No
IP Blacklist Checking
No
Improvement Recommendations
No
Pre-Send Email Testing
No
Preview Across Browsers & Devices
No
Reporting / Analytics
No
Sender Reputation Scoring
No
Spam Testing
No
Product Features
Email Testing
A/B Testing
No
Accessibility Testing
No
DMARC Analytics
No
Deliverability Rates
No
HTML Validation
No
IP Blacklist Checking
No
Improvement Recommendations
No
Pre-Send Email Testing
No
Preview Across Browsers & Devices
No
Reporting / Analytics
No
Sender Reputation Scoring
No
Spam Testing
No