Sometimes custom settings can cause email authentication to fail, even with legitimate emails. ARC was created to address these issues.
Author: Piotr Malek
How to Send Emails in Flask
We explain the basics of sending emails in Flask, including the asynchronous sending with Celery. Sample code included.
Ultimate Email Deliverability Guide
Many factors have an impact on whether an email will be delivered or not. Check out what to do and what to avoid to always be on the winning side!
Understanding Your SpamAssassin Score and Fixing It
The SpamAssassin score is a great indication of the quality of your emails. We explain how to interpret its results and improve upon them.
CakePHP Email Sending
Sending emails in CakePHP is simple. We explain how to compose an email, set up a transporter, build a template, and customize them.
Slack Email Integration: Sending and Receiving Emails
Slack can be easily integrated with email clients for both sending and receiving emails. We explore many different approaches.
  and HTML Space Challenges and Tricks
 , or non-breaking space, is an HTML character used to create a space. We analyze when to use it and when to opt for other solutions.
Laravel Email Testing: Mailtrap vs. Other Options
There are several popular methods for email testing in Laravel. We analyze how each one works and what they're great for.
Ultimate Guide to Email Authentication
In this ultimate guide, we cover all available email authentication methods, such as SPF, DKIM, and others. We also share detailed examples for each one.
QA Testing Memes
Whether you're a QA, you work with one or you've heard legends of this ancient tribe, you deserve a good laugh. We put together some great testing memes.
