Title: Mailgun Error Last modified: April 6, 2019 --- # Mailgun Error * [freemason](https://wordpress.org/support/users/freemason/) * (@freemason) * [7 years, 4 months ago](https://wordpress.org/support/topic/mailgun-error-2/) * Hi, * I am trying to setup Mailgun and when sending a test email I get error “Error( 4) when trying to json_decode response”. The same configuration using WP Mail SMTP works without errors. Can you please help me solve this? * Thanks A Jorge * Error (4) when trying to json_decode response * –Raw message follows– * Array ( [from] => Freemason.pt [to] => Array ( [0] => [xxxxxxxxx@xxxx.xxx](https://wordpress.org/support/topic/mailgun-error-2/xxxxxxxxx@xxxx.xxx?output_format=md)) * [subject] => Postman SMTP Test (www.freemason.pt) [h:X-Mailer] => //wordpress. org/plugins/post-smtp/) [h:Content-Type] => multipart/alternative [h:Sender] => [xxxxxxxxxxx@xxxx.xxx](https://wordpress.org/support/topic/mailgun-error-2/xxxxxxxxxxx@xxxx.xxx?output_format=md)[ cc] => [bcc] => [text] => Hello! * Sent by Postman 1.9.8 – [https://wordpress.org/plugins/post-smtp/](https://wordpress.org/plugins/post-smtp/) * [html] =>
Hello! – 你好 – Bonjour! – नमस्ते – ¡Hola! – Olá – Привет! – 今日は
Sent by Postman 1.9.8
[https://wordpress.org/plugins/post-smtp/](https://wordpress.org/plugins/post-smtp/)

Image source: [poofytoo.com](http://poofytoo.com) – Used with permission
) Viewing 3 replies - 1 through 3 (of 3 total) * [yehudah](https://wordpress.org/support/users/yehudah/) * (@yehudah) * [7 years, 4 months ago](https://wordpress.org/support/topic/mailgun-error-2/#post-11399425) * Hi, * Go to the plugin email log hover the failed email row, press “session transcript” and paste the ouput here. * Thread Starter [freemason](https://wordpress.org/support/users/freemason/) * (@freemason) * [7 years, 4 months ago](https://wordpress.org/support/topic/mailgun-error-2/#post-11399466) * Hi, * Thankd for your prompt answer. Here it is: * Error (4) when trying to json_decode response * –Raw message follows– * Array ( [from] => Freemason.pt [to] => Array ( [0] => [freemason.pt@gmail.com](https://wordpress.org/support/topic/mailgun-error-2/freemason.pt@gmail.com?output_format=md)) * [subject] => Postman SMTP Test (www.freemason.pt) [h:X-Mailer] => //wordpress. org/plugins/post-smtp/) [h:Content-Type] => multipart/alternative [h:Sender] => [freemason.pt@gmail.com](https://wordpress.org/support/topic/mailgun-error-2/freemason.pt@gmail.com?output_format=md)[ cc] => [bcc] => [text] => Hello! * Sent by Postman 1.9.8 – [https://wordpress.org/plugins/post-smtp/](https://wordpress.org/plugins/post-smtp/) * [html] =>
Hello! – 你好 – Bonjour! – नमस्ते – ¡Hola! – Olá – Привет! – 今日は
Sent by Postman 1.9.8
[https://wordpress.org/plugins/post-smtp/](https://wordpress.org/plugins/post-smtp/)

Image source: [poofytoo.com](http://poofytoo.com) – Used with permission
) * [yehudah](https://wordpress.org/support/users/yehudah/) * (@yehudah) * [7 years, 4 months ago](https://wordpress.org/support/topic/mailgun-error-2/#post-11399493) * Please contact me here: [https://postmansmtp.com/contact](https://postmansmtp.com/contact) Viewing 3 replies - 1 through 3 (of 3 total) The topic ‘Mailgun Error’ 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/) * 3 replies * 2 participants * Last reply from: [yehudah](https://wordpress.org/support/users/yehudah/) * Last activity: [7 years, 4 months ago](https://wordpress.org/support/topic/mailgun-error-2/#post-11399493) * Status: not resolved