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What is Mailsac?

You can instantly generate any email address that ends with @mailsac.com and start receiving emails right away, requiring no prior configuration. By default, all inboxes are public, but you can enhance your privacy by creating an account, which allows for a practical and budget-friendly way to have a unique email address for every online service you use. Moreover, you can bring together all your Mailsac email addresses into one central inbox that you can regularly check. The platform offers email validation to ensure that the address format is correct and that it is not associated with a known disposable email provider. Mailsac further streamlines email management via its REST API, Webhooks, and WebSockets, enabling users to reserve or free up email addresses, monitor incoming messages, download attachments, and handle mail routing efficiently. It is worth mentioning that while email attachments sent to public addresses cannot be accessed directly through the website, they can be retrieved using the REST API. In contrast, attachments sent to Private Addresses can be viewed effortlessly through the Unified Inbox or via any email client that supports POP3. This adaptability makes Mailsac an excellent option for those looking to manage temporary email requirements effectively, ensuring you have the tools necessary to keep your digital communications organized.

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

Media

Integrations Supported

HTML
Quickwork

Integrations Supported

HTML
Quickwork

API Availability

Has API

API Availability

Has API

Pricing Information

Pricing not provided.
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

Forking Software

Company Location

United States

Company Website

mailsac.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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