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WordPress plugin
Mailsure
Test email sending, SPF, DKIM & DMARC Mailsure provides a simple one-click email authentication test to check if WordPress is able to send properly authenticated emails. Also included: Send a test email to any address Mail server IP blacklist check via MXToolbox . View their privacy policy here . Pl
PricingFree downloadThe WordPress.org download is free. Pro versions, add-ons or external services may cost extra.
CompatibilityRequires WordPress 6.0 and PHP 7.1.
SourceWordPress plugins · Oct 18, 2026
01 / Source details
About this tool.
Test email sending, SPF, DKIM & DMARC
Mailsure provides a simple one-click email authentication test to check if WordPress is able to send properly authenticated emails.
Also included:
- Send a test email to any address
- Mail server IP blacklist check via MXToolbox . View their privacy policy here .
Plugin settings are in Tools -> Mailsure
See it in action
Screenshots & previews.
02 / Source details
Getting started.
Automatic Installation
- 01Go to Plugins -> Add New
- 02Search for “Mailsure”
- 03Click on the Install button under the Mailsure plugin
- 04Once plugin has been installed, click the Activate button
Manual Installation
- 05Click the Download button to download the plugin zip file
- 06Login to the WordPress dashboard and go to Plugins -> Add New Plugin
- 07Select ‘Upload Plugin’ then ‘Choose file’ and select the plugin zip file
- 08Click the ‘Install Now’ button
- 09Click the ‘Activate Plugin’ button
03 / Source details
Frequently asked questions.
Will it work if I use an SMTP plugin?
Yes, the plugin uses the wp_mail function to send the test email which should work with any SMTP plugin.
Keep exploring
