Add Plain-Text Email
Adds a text/plain email to text/html emails to decrease the chance of emails being tagged as spam.
The facts
- Rating
- 5★ from 4
- Active installs
- 100+
- Price
- Free
- Last updated
- 20 Aug 2026
- Added
- Oct 2013
- Requires WP
- 3.1
- Tested up to
- WP 7.1
- Requires PHP
- 7.4
- Downloads
- 6,516
Our analysis
AI-assistedAdd Plain-Text Email is a WordPress plugin that automatically creates a plain text version of HTML emails sent via the wp_mail() function. This feature helps reduce the likelihood of legitimate emails being marked as spam by filtering tools like SpamAssassin.
The plugin requires no configuration and works automatically upon activation. It is suitable for users who want to ensure their emails are delivered without being flagged as spam, particularly those who rely on HTML emails for communication.
Best for: This plugin is best for WordPress users who send HTML emails and want to improve deliverability.
What it does well
- ✓Automatically adds plain text versions of HTML emails
- ✓No settings required for operation
- ✓Helps reduce spam flagging of legitimate emails
- ✓Developed by a seasoned WordPress plugin author
Where it falls short
- •Limited feature set, as it only adds plain text versions
- •No user-configurable options available
Verdict
Add Plain-Text Email is a straightforward solution for enhancing email deliverability without additional configuration. It may be limited in features but serves a specific purpose effectively.
From the developer
Danny van Kooten's own description of Add Plain-Text Email, lightly tidied.
Add Plain-Text Email
This plugin will add a plain/text version of your HTML emails to your WordPress emails. This decreases the chance of your legit emails being marked as spam by tools as SpamAssassin.
This plugin comes without any settings. When activated, it will automatically look for HTML emails being sent using the wp_mail() function and when necessary add the plain text version.
The source code of this plugin is available on GitHub: ibericode/wp-add-plaintext-email.
About the plugin author
Danny van Kooten has been building WordPress plugins since 2010, starting with WordPress 3.0.
He is the founder of ibericode, the small software company behind popular WordPress plugins including Mailchimp for WordPress and Koko Analytics.