Before you start wondering why your emails fail to generate any results, make sure they actually reach the intended recipients and check your campaign deliverability.
Test all emails thoroughly and never spam real customers. These are crucial rules for email developers. Learn how email testing can be fast and easy with Mailtrap.
Having multiple SPF records for one domain is a bad practice. Learn how to convert this for your own benefit and explore useful tips to set up an SPF record
550 5.1.1 User unknown is a server error response code to RCPT TO command. Learn what it means, how to fix and avoid this issue on different servers
SMTP relay is the process of routing emails to the proper destination SMTP server. Check out several options to test your SMTP server for relaying
Mailcatcher can be used to test your emails before they’re sent to real users. Let's see how it works and what are the available alternatives.
MailHog is a fake SMTP server for testing the email sending of web apps. Find out how to set it up and use it, as well as the best alternatives to MailHog.
There's plenty of reasons to hide emails. Some obfuscate them to avoid spam bots. Others mask emails to test their workflows or secure database records. Let's see what really works and what doesn't.
QAs often create tons of fake email addresses to test their workflows. How to go about it? Which tools to use? And is it the right approach? Let's see!
The email testing checklist includes test of email sending capability, deliverability and content. Check out our picks of tools to cover all types of tests