Title: ERROR: Status code is 0
Last modified: March 30, 2021

---

# ERROR: Status code is 0

 *  Resolved [justinprobyn](https://wordpress.org/support/users/justinprobyn/)
 * (@justinprobyn)
 * [5 years, 2 months ago](https://wordpress.org/support/topic/error-status-code-is-0/)
 * Hello,
 * Recently the plugin has stopped working on the website.
 * Here are images to the errors we are receiving.
 * > [View post on imgur.com](https://imgur.com/a/ripscuy)
 * > [View post on imgur.com](https://imgur.com/a/oDatY7V)
 * Please advise on how to fix this.
 * Thanks,
    Justin
 * ******
    Diagnostic Test
 *     ```
       Mailer: postsmtp
       HostName: csrslearn.co.za
       cURL Version: 7.64.0
       OpenSSL Version: OpenSSL/1.0.2r
       OS: Windows NT COM035_TRUSERVP 10.0 build 17763 (Windows Server 2016) i586
       PHP: WINNT 7.1.29 English_South Africa.1252
       PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=No, allow_url_fopen=Yes, mcrypt=Yes, zlib_encode=Yes
       WordPress: 5.6.1 en_US UTF-8
       WordPress Theme: Course Builder
       WordPress Plugins: Add From Server, Akismet Anti-Spam, Anywhere Elementor, bbPress, Better Notifications for WP, Caldera Forms, Contact Form 7, Design Upgrade for LearnDash, Elementor, Flexible Checkout Fields, WPBakery Page Builder, HubSpot All-In-One Marketing - Forms, Popups, Live Chat, LearnDash LMS - Course Grid, LearnDash LMS - Notifications, LearnDash ProPanel, LoginPress - Customizing the WordPress Login, MC4WP: Mailchimp for WordPress, Peter's Login Redirect, Post SMTP, Post/Page specific custom CSS, Slider Revolution, LearnDash LMS, Thim Core, Thim Course Builder, Thim Portfolio, Under Construction, UpdraftPlus - Backup/Restore, Increase Maximum Upload File Size, User Menus, User Registration, Widget Logic, WooCommerce PayPal Checkout Gateway, WooCommerce, WordPress Social Login, WP Events Manager - WooCommerce Payment Methods Integration, WP Events Manager, WordPress REST API Authentication, WPS Hide Login
       WordPress wp_mail Owner: C:\inetpub\CSRSLearn\wp-content\plugins\post-smtp\Postman\PostmanWpMailBinder.php
       WordPress wp_mail Filter(s): wp_staticize_emoji_for_email, bbp_mail, PostsmtpMailer->get_mail_args
       WordPress phpmailer_init Action(s): wpcf7_phpmailer_init
       Postman: 2.0.21
       Postman Sender Domain (Envelope|Message): csrs.co.za | csrs.co.za
       Postman Prevent Message Sender Override (Email|Name): No | No
       Postman Active Transport: SendGrid API (https://api.sendgrid.com:443)
       Postman Active Transport Status (Ready|Connected): Yes | Yes
       Postman Deliveries (Success|Fail): 15473 | 15468
       Postman File Locking (Enabled|Temp Dir): No | /tmp
       ```
   
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-status-code-is-0%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Tim](https://wordpress.org/support/users/tneville/)
 * (@tneville)
 * [5 years, 2 months ago](https://wordpress.org/support/topic/error-status-code-is-0/#post-14272178)
 * Hi [@justinprobyn](https://wordpress.org/support/users/justinprobyn/),
 * Have you gone back through the set up wizard just to verify your SendGrid API
   details are all correct?
 * Are test mails from Post SMTP working, or also producing the same problem?
 * What SMTP service are you using for fallback?
 * Kind Regards,
    Tim
 *  [Tim](https://wordpress.org/support/users/tneville/)
 * (@tneville)
 * [5 years, 2 months ago](https://wordpress.org/support/topic/error-status-code-is-0/#post-14295587)
 * Hi [@justinprobyn](https://wordpress.org/support/users/justinprobyn/),
 * We haven’t heard from you in a while, so I’ll mark this thread as resolved. If
   you have any further questions please feel free to open a new thread, and link
   to this one.
 * Kind Regards,
    Tim

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘ERROR: Status code is 0’ 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/)

 * 2 replies
 * 2 participants
 * Last reply from: [Tim](https://wordpress.org/support/users/tneville/)
 * Last activity: [5 years, 2 months ago](https://wordpress.org/support/topic/error-status-code-is-0/#post-14295587)
 * Status: resolved