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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.

What is Email on Acid?

Our efficient three-step method seamlessly fits into your existing production workflow, allowing you to conserve time, increase value, and connect with a wider array of subscribers. Enjoy the simplicity of sending perfect emails with just one click—no HTML knowledge required! We offer customized click-to-fix features that address your team's specific requirements, such as UTM validation, accessibility checks for ADA compliance, and the capability to validate and modify the initial frame of animated GIFs specifically for Outlook. It is essential to keep in mind that if your subscribers do not receive your campaigns, they cannot interact with them. Enhance your email deliverability to guarantee that your messages reach more inboxes by employing blocklist domain and spam tests. You can evaluate your emails against 23 popular spam filters and check the status of your IP address with major blocklist services, helping you tackle any deliverability issues before you click “send.” Since each inbox displays emails differently, we provide previews across over 90 different clients and devices, ensuring your content is shown as intended in every inbox while also improving your overall email effectiveness. Additionally, our platform empowers you to track engagement metrics, enabling continuous optimization of your email strategies for even better results.

Media

Media

Integrations Supported

HTML

Integrations Supported

Sinch
emfluence Marketing Platform
iPost

API Availability

API Availability

Pricing Information

$49 per month
Free Version

Pricing Information

$86 per month
Or $73 per month if billed annually
Free Trial Offered?

Supported Platforms

Mac

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Standard Support
Web-Based Support

Training Options

Documentation Hub
Online Training

Training Options

Documentation Hub
Webinars
Online Training

Company Facts

Organization Name

Beyond Code

Date Founded

2017

Company Location

Germany

Company Website

usehelo.com

Company Facts

Organization Name

Sinch

Date Founded

2008

Company Location

Sweden

Company Website

www.emailonacid.com

Categories and Features

Email Testing

Not specified

Categories and Features

Email Deliverability

Not specified

Email Template Design

Not specified

Email Testing

Not specified

Email Tracking

Campaign Management
Location Tracking

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