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Average Ratings 0 Ratings

Total
ease
features
design
support

No User Reviews. Be the first to provide a review:

Write a Review

Description

SMTP Debug is a free and secure tool that can be used to diagnose SMTP connectivity issues. This tool connects your SMTP server and initiates a testing session. It then provides a detailed log detailing the interaction between servers. This tool simplifies troubleshooting, and helps resolve sending issues, whether you're using popular services like SendGrid or Google SMTP. Your information is private and secure with end-to-end encrypted communication. The tool does not store session logs or credentials. You can enhance security further by changing your password or using the optional SMTP Blackhole feature.

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

Screenshots View All

No images available

Integrations

Elastic Email Yes 
Mailgun Yes 
SendGrid Yes 
UniOne Yes 

Integrations

Elastic Email No 
Mailgun No 
SendGrid No 
UniOne No 

Pricing Details

$0
Free Trial No 
Free Version Yes 

Pricing Details

$9/10000 emails/month
Free Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
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) Yes 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs No 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

SMTP Debug Tool

Founded

2019

Country

Cyprus

Website

smtpdebug.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 

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