Title: “incorrect authentication data” error message Last modified: May 16, 2022 --- # “incorrect authentication data” error message * Resolved [pegasuscollection1](https://wordpress.org/support/users/pegasuscollection1/) * (@pegasuscollection1) * [4 years ago](https://wordpress.org/support/topic/incorrect-authentication-data-error-message/) * Hello, My automated emails for my website haven’t been going out to customers after purchasing items and I also am not receiving any emails to let me know that new orders have been placed. The emails are showing up in my WP Mail Logging Log but on the side of each one under error it says “incorrect authentication data”. So I’m not sure what to do?? Let me know what can fix this. Thank you! Viewing 8 replies - 1 through 8 (of 8 total) * Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * (@haseeb0001) * [4 years ago](https://wordpress.org/support/topic/incorrect-authentication-data-error-message/#post-15652934) * Hi [@pegasuscollection1](https://wordpress.org/support/users/pegasuscollection1/) * Hope you are doing good. * Please share the diagnostic test report and also let me know which mailing services are you using? * Thanks * Thread Starter [pegasuscollection1](https://wordpress.org/support/users/pegasuscollection1/) * (@pegasuscollection1) * [4 years ago](https://wordpress.org/support/topic/incorrect-authentication-data-error-message/#post-15686630) * Hi, * Sorry I am not that experienced with WordPress so how do I share a diagnostic report? * And how do I know which mailing services I am using? * Thanks * Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * (@haseeb0001) * [4 years ago](https://wordpress.org/support/topic/incorrect-authentication-data-error-message/#post-15692014) * [@pegasuscollection1](https://wordpress.org/support/users/pegasuscollection1/) * Ok, Go to the Plugin dashboard and in the last menu, there will option of “Diagnostic Test” click on it and copy and paste the report here. * For Mailing Service, Goto Plugin settings and share the Account tab screenshot here. * Thanks * Thread Starter [pegasuscollection1](https://wordpress.org/support/users/pegasuscollection1/) * (@pegasuscollection1) * [4 years ago](https://wordpress.org/support/topic/incorrect-authentication-data-error-message/#post-15700630) * Mailer: postsmtp HostName: pegasuscollection.com cURL Version: 7.81.0 OpenSSL Version: OpenSSL/1.1.1n OS: Linux gator3113.hostgator.com 4.19.150-76.ELK.el6. x86_64 #1 SMP Wed Oct 7 01:34:10 CDT 2020 x86_64 PHP: Linux 7.4.29 C PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt =No, zlib_encode=Yes WordPress: 6.0 en_US UTF-8 WordPress Theme: Block Shop WordPress Plugins: All-in-One WP Migration Unlimited Extension, All-in-One WP Migration, Code Snippets, Disable Comments, Easy Theme and Plugin Upgrades, Hide Shipping Method For WooCommerce Pro, Jetpack, Password Protect WordPress Lite, Post SMTP, WooCommerce USPS Shipping, WooCommerce, WP Mail Logging, Perfect Images (Retina, Thumbnails, Replace) WordPress wp_mail Owner: /home4/pegasion/public_html/wp- content/plugins/post-smtp/Postman/PostmanWpMailBinder.php WordPress wp_mail Filter( s): wp_staticize_emoji_for_email, PostsmtpMailer->get_mail_args, No3x\WPML\WPML_Plugin- >log_email WordPress phpmailer_init Action(s): PostsmtpMailer->phpmailer_smtp_init Postman: 2.0.27 Postman Sender Domain (Envelope|Message): pegasuscollection.com | pegasuscollection.com Postman Prevent Message Sender Override (Email|Name): No | No Postman Active Transport: SMTP (smtp:tls:plain://server34.web-hosting. com:587) Postman Active Transport Status (Ready|Connected): Yes | Yes Postman Deliveries (Success|Fail): 500 | 49 * Thread Starter [pegasuscollection1](https://wordpress.org/support/users/pegasuscollection1/) * (@pegasuscollection1) * [4 years ago](https://wordpress.org/support/topic/incorrect-authentication-data-error-message/#post-15700641) * [https://pegasuscollection.com/wp-content/uploads/2022/06/Screen-Shot-2022-06-01-at-1.44.24-PM.png](https://pegasuscollection.com/wp-content/uploads/2022/06/Screen-Shot-2022-06-01-at-1.44.24-PM.png) * [https://pegasuscollection.com/wp-content/uploads/2022/06/Screen-Shot-2022-06-01-at-1.44.47-PM.png](https://pegasuscollection.com/wp-content/uploads/2022/06/Screen-Shot-2022-06-01-at-1.44.47-PM.png) * Thread Starter [pegasuscollection1](https://wordpress.org/support/users/pegasuscollection1/) * (@pegasuscollection1) * [4 years ago](https://wordpress.org/support/topic/incorrect-authentication-data-error-message/#post-15704513) * Let me know I provided what you need or if you need anything else in order to get back to me. Thanks * Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * (@haseeb0001) * [4 years ago](https://wordpress.org/support/topic/incorrect-authentication-data-error-message/#post-15711888) * [@pegasuscollection1](https://wordpress.org/support/users/pegasuscollection1/) * Seems like it’s a setting issue, try to change the OutGoing Port number or talk to your hosting support and ask for an OUTGOING SMTP link. * Change your Email account password then configure the plugin again. * These issues come when Pass is incorrect or there is an issue in the settings. * For testing, you can configure your Gmail account and test also. * Thanks * Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * (@haseeb0001) * [3 years, 10 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-error-message/#post-15842360) * We haven’t heard from you so we’re going to mark this thread as resolved. Feel free to open a new one if you need it. Viewing 8 replies - 1 through 8 (of 8 total) The topic ‘“incorrect authentication data” error message’ 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/) * 8 replies * 2 participants * Last reply from: [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * Last activity: [3 years, 10 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-error-message/#post-15842360) * Status: resolved