Title: Incorrect authentication data Last modified: September 24, 2024 --- # Incorrect authentication data * Resolved [dabeecher](https://wordpress.org/support/users/dabeecher/) * (@dabeecher) * [1 year, 8 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-17/) * Hi Guys, * Been using your plugin for ages and it works great. I’ve just moved our website to a new server and now the SMTP error is Incorrect authentication data but doesn’t give much more info. * The login credentials are correct, and we’ve logged into it via webmail, and it was working fine on a previous server. * Wondered if you had any ideas? Viewing 6 replies - 1 through 6 (of 6 total) * Plugin Support [M Aqib Khan](https://wordpress.org/support/users/aqibkhan9/) * (@aqibkhan9) * [1 year, 8 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-17/#post-18033586) * Hello [@dabeecher](https://wordpress.org/support/users/dabeecher/) * Hope you are doing well. * Thank you so much for reaching out to us. Please note that changing servers could potentially impact your emails if they are hosted on the same server. Kindly let us know which email service provider you are using to configure with Post SMTP & also the screenshot of the error message you are facing. * Looking forward to your response & an opportunity to assist you further. * Thanks and regards, Support Team – WP Experts * Thread Starter [dabeecher](https://wordpress.org/support/users/dabeecher/) * (@dabeecher) * [1 year, 8 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-17/#post-18033587) * Thanks for getting back to me, the emails are hosted completely separately * Its an office365 SMTP one, see screenshot of current settings [https://ibb.co/4MrGgj4](https://ibb.co/4MrGgj4) * Plugin Support [M Aqib Khan](https://wordpress.org/support/users/aqibkhan9/) * (@aqibkhan9) * [1 year, 8 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-17/#post-18033691) * Hello [@dabeecher](https://wordpress.org/support/users/dabeecher/) * We recommend that you generate an app password and use that instead of the email password. You can review this [link ](https://support.microsoft.com/en-us/account-billing/create-app-passwords-from-the-security-info-preview-page-d8bc744a-ce3f-4d4d-89c9-eb38ab9d4137) on how to generate app passwords. * Also, share the screenshot of your Connectivity test report. To access the Diagnostic Test and Connectivity Report, navigate to the Post SMTP dashboard and find it under the Troubleshooting section. * Do update us with the outcome. * Thanks and regards, Support Team – WP Experts * Thread Starter [dabeecher](https://wordpress.org/support/users/dabeecher/) * (@dabeecher) * [1 year, 8 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-17/#post-18033697) * Please see attached diagnostics report: * `Mailer: postsmtp HostName: stockportcounty.comcURL Version: 7.76.1OpenSSL Version: OpenSSL/3.0.7OS: Linux dedi-133384.dedicloud.co.uk 5.14.0-427.35.1.el9_4.x86_64# 1 SMP PREEMPT_DYNAMIC Thu Sep 12 11:21:43 EDT 2024 x86_64PHP: Linux 8.1.29 C. UTF-8PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=No, zlib_encode=YesWordPress: 6.6.2 en_US UTF-8WordPress Theme: Platform81 ThemeWordPress Plugins: Advanced Custom Fields: Font Awesome, Advanced Custom Fields PRO, Ajax Load More, Contact Form 7 Google Analytics Integration, Classic Editor, Cloudflare, AccelerateWP, Contact Form 7 - Dynamic Text Extension, Honeypot for Contact Form 7, Contact Form 7 Extension For Mailchimp, Contact Form 7, Contact Form CFDB7, Getwid, Inline Google Spreadsheet Viewer, Interact Quiz Embed, Post SMTP, Redis Object Cache, ReOrder Posts within Categories, Simple 301 Redirects, Simple Custom Post Order, New Installation, SVG Support, Category Order and Taxonomy Terms Order, Toolset Types, Termly - GDPR/CCPA Cookie Consent Banner, Yoast SEO, WP Carousel, WP MigrateWordPress wp_mail Owner: /home/stockportcounty/ public_html/wp-content/plugins/post-smtp/Postman/PostmanWpMailBinder.phpWordPress wp_mail Filter(s): wp_staticize_emoji_for_email, PostsmtpMailer->get_mail_argsWordPress phpmailer_init Action(s): wpcf7_phpmailer_init, PostsmtpMailer->phpmailer_smtp_initPostman: 2.9.8Postman Sender Domain (Envelope|Message): stockportcounty.com | stockportcounty. comPostman Prevent Message Sender Override (Email|Name): No | NoPostman Active Transport: Other SMTP (smtp:tls:login://smtp.office365.com:587)Postman Active Transport Status (Ready|Connected): Yes | YesPostman Deliveries (Success|Fail): 35240 | 271 * Screenshot of the connectivity test also [https://ibb.co/zhXqJfQ](https://ibb.co/zhXqJfQ) * Plugin Support [M Aqib Khan](https://wordpress.org/support/users/aqibkhan9/) * (@aqibkhan9) * [1 year, 8 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-17/#post-18040115) * Hello @dabeecher , * We hope this message finds you well. * We are reaching out to follow up on our previous communication. Have you tried the authentication with the app-generated password? * Kindly share the feedback with us. * Thank you and best regards, * Support Team WP Experts * Plugin Support [M Aqib Khan](https://wordpress.org/support/users/aqibkhan9/) * (@aqibkhan9) * [1 year, 8 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-17/#post-18062867) * Hello @dabeecher , * We hope you are doing well. * We are marking this thread as resolved due to inactivity. If you encounter any further issues, please feel free to open a new thread. * Have a great day! * Thanks and regards, Support Team – WP Experts Viewing 6 replies - 1 through 6 (of 6 total) The topic ‘Incorrect authentication data’ 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/) * 6 replies * 2 participants * Last reply from: [M Aqib Khan](https://wordpress.org/support/users/aqibkhan9/) * Last activity: [1 year, 8 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-17/#post-18062867) * Status: resolved