Title: “sendmail function may failed” error
Last modified: February 6, 2020

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# “sendmail function may failed” error

 *  Resolved [ramnathk](https://wordpress.org/support/users/ramnathk/)
 * (@ramnathk)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/sendmail-function-may-failed-error/)
 * Hi there, I get this notice printed on top of every screen in my WordPress admin
   pages. Can you help?
 * I setup a sendinblue account and used this plugin to send transactional mails
   out via API. I sent a couple of test emails and they work, but this error message
   shows up all the time. How do I get rid of it?

Viewing 1 replies (of 1 total)

 *  Plugin Author [Brevo](https://wordpress.org/support/users/neeraj_slit/)
 * (@neeraj_slit)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/sendmail-function-may-failed-error/#post-12410464)
 * Hi ramnathk,
 * Thank you for reaching out!
 * My name is Valeria, I work as Product Manager at Sendinblue.
 * Even though you can send test emails, the actual transactional emails won’t be
   delivered to your customers. 
 * The reason is that test emails are sent directly through our API when sending
   transactional email calls “wp_mail()” function.
 * The notification you see displays when another installed plugin defines SMTP “
   wp_mail()” function.
 * So, when real mail is triggered, WordPress finds wp_mail function defined by 
   another tool and sends the email accordingly, in this case, not using Sendonblue.
 * If you remove the other plugin, the notification will be turned off and transactional
   emails sent using Sendinblue plugin.
 * Thank you for raising this issue, we will work on communicating SMTP settings
   during plugin setup process. Also, we would appreciate your feedback about the
   notification itself. Was it helpful for you?
 * 

If you have any further issues, don’t hesitate to contact me directly (valeria@sendinblue.
   com) or [plugins@sendinblue.com](https://wordpress.org/support/topic/sendmail-function-may-failed-error/plugins@sendinblue.com?output_format=md)
   for further investigation. 


 * Have a great weekend!
 * All the best,
    Valeria

Viewing 1 replies (of 1 total)

The topic ‘“sendmail function may failed” error’ is closed to new replies.

 * ![](https://ps.w.org/mailin/assets/icon-256x256.png?rev=2993173)
 * [Brevo - Email, SMS, Web Push, Chat, and more.](https://wordpress.org/plugins/mailin/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/mailin/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/mailin/)
 * [Active Topics](https://wordpress.org/support/plugin/mailin/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/mailin/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/mailin/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Brevo](https://wordpress.org/support/users/neeraj_slit/)
 * Last activity: [6 years, 4 months ago](https://wordpress.org/support/topic/sendmail-function-may-failed-error/#post-12410464)
 * Status: resolved