Title: Mailgun API Errors
Last modified: October 11, 2021

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# Mailgun API Errors

 *  [onesandzerosdigital](https://wordpress.org/support/users/onesandzerosdigital/)
 * (@onesandzerosdigital)
 * [4 years, 7 months ago](https://wordpress.org/support/topic/mailgun-api-errors/)
 * I seem to be getting a lot the following message with this plugin.
 * [https://api.mailgun.net:443](https://api.mailgun.net:443)
    The parameters passed
   to the API were invalid. Check your inputs!
 * The API credentials are correct as mail is still being sent from the site but
   i would like to eliminate these failures.
 * Has anyone else had this experience with MAILgun API and postSMTP?

The topic ‘Mailgun API Errors’ is closed to new replies.

 * ![](https://ps.w.org/post-smtp/assets/icon-128x128.gif?rev=3209655)
 * [Post SMTP – Complete Email Deliverability and SMTP Solution with Email Logs, Alerts, Backup SMTP & Mobile App](https://wordpress.org/plugins/post-smtp/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/post-smtp/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/post-smtp/)
 * [Active Topics](https://wordpress.org/support/plugin/post-smtp/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/post-smtp/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/post-smtp/reviews/)

 * 0 replies
 * 1 participant
 * Last reply from: [onesandzerosdigital](https://wordpress.org/support/users/onesandzerosdigital/)
 * Last activity: [4 years, 7 months ago](https://wordpress.org/support/topic/mailgun-api-errors/)
 * Status: not resolved