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.
When activated, the Add Plain Text Email plugin will automatically look for HTML emails being sent using the wp_mail() function. When necessary, it wil automatically generate a plain text version of the email and add it to the original email.
Why add a text/plain email?
Because adding a text version to your HTML emails will decrease your Spam Assassin score (link). This, in turn, decreases the chance of your legit emails being marked as spam and ending up in someone’s spam folder.
Mail-tester.com is a cool tool to test the “spammyness” of your emails.
Download Add Plain Text Email
The Add Plain Text Email plugin is available for download in the WordPress.org plugin repository.
Please use the Add Plain Text Email support forums on WordPress.org if you need any help.
If you like Add Plain Text Email, consider donating $10, $20 or $50 as a token of your appreciation.