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What is SMTP Debug Tool?

SMTP Debug is a complimentary and secure utility designed to help identify and resolve SMTP connectivity problems. By linking to your SMTP server, this tool starts a testing session and generates a comprehensive log that outlines the exchanges between servers. It streamlines the troubleshooting process, making it easier to fix sending issues across various platforms, including popular services such as SendGrid and Google SMTP. Your data remains confidential and secure, thanks to end-to-end encrypted communication. Additionally, the tool does not retain session logs or credentials, which further protects your information. For enhanced security, you have the option to change your password or utilize the SMTP Blackhole feature, adding another layer of protection to your email communications.

What is HELO?

HELO is a desktop application designed to simplify the process of email testing and debugging for web developers by capturing and analyzing emails generated during the application development stage. Instead of sending emails to real recipients, HELO includes a local SMTP server that intercepts outgoing messages and displays them within the application, allowing developers to inspect and verify the content prior to launch. This approach is essential for preventing common problems, such as broken links, missing images, and formatting errors, which may arise in live emails. The application provides detailed debugging views that illustrate the email in various formats—such as HTML display, plain text, raw source code, and full message headers—giving developers a thorough understanding of the email's architecture. Additionally, HELO implements automated validation tools to verify the links within the email, ensuring they return valid HTTP responses and significantly reducing the risk of distributing emails with invalid or broken URLs. By incorporating these capabilities, HELO not only streamlines the development process but also fosters greater confidence in the integrity of email communications before they are delivered to end users. Ultimately, this results in a more efficient workflow and enhances overall email quality, which is crucial in maintaining user engagement and satisfaction.

Media

No images available

Media

Integrations Supported

Elastic Email
HTML
Mailgun
SendGrid
UniOne

Integrations Supported

Elastic Email
HTML
Mailgun
SendGrid
UniOne

API Availability

Has API

API Availability

Has API

Pricing Information

$0
Free Trial Offered?
Free Version

Pricing Information

$49 per month
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

SMTP Debug Tool

Date Founded

2019

Company Location

Cyprus

Company Website

smtpdebug.com

Company Facts

Organization Name

Beyond Code

Date Founded

2017

Company Location

Germany

Company Website

usehelo.com

Categories and Features

Email Testing

A/B Testing
Accessibility Testing
DMARC Analytics
Deliverability Rates
HTML Validation
IP Blacklist Checking
Improvement Recommendations
Pre-Send Email Testing
Preview Across Browsers & Devices
Reporting / Analytics
Sender Reputation Scoring
Spam Testing

Categories and Features

Email Testing

A/B Testing
Accessibility Testing
DMARC Analytics
Deliverability Rates
HTML Validation
IP Blacklist Checking
Improvement Recommendations
Pre-Send Email Testing
Preview Across Browsers & Devices
Reporting / Analytics
Sender Reputation Scoring
Spam Testing

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