Title: Incorrect authentication data Last modified: March 7, 2019 --- # Incorrect authentication data * [E.T.](https://wordpress.org/support/users/eranthomson/) * (@eranthomson) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/) * We keep getting this email: * You getting this message because an error detected while delivered your email. For the domain: [https://www.laugh-masters.com.au](https://www.laugh-masters.com.au) The log to paste when you open a support issue: Incorrect authentication data * No idea why. * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fincorrect-authentication-data-7%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 13 replies - 1 through 13 (of 13 total) * [yehudah](https://wordpress.org/support/users/yehudah/) * (@yehudah) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11284257) * office365? * Thread Starter [E.T.](https://wordpress.org/support/users/eranthomson/) * (@eranthomson) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11284266) * I don’t understand what you’re asking, but we don’t have or use Office 365. * [yehudah](https://wordpress.org/support/users/yehudah/) * (@yehudah) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11284274) * Please do a “diagnostic test” from the main screen and paste the output here. * Thread Starter [E.T.](https://wordpress.org/support/users/eranthomson/) * (@eranthomson) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11284283) * HostName: laugh-masters.com.au cURL Version: 7.62.0 OpenSSL Version: OpenSSL/ 1.0.2k OS: Linux sgpro6.fcomet.com 2.6.32-896.16.1.lve1.4.54.el6.x86_64 #1 SMP Wed May 2 07:43:19 EDT 2018 x86_64 PHP: Linux 7.0.33 C PHP Dependencies: iconv =Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt =Yes, zlib_encode=Yes WordPress: 5.1 en_US UTF-8 WordPress Theme: Master Study Child WordPress Plugins: Advanced Custom Fields PRO, Akismet Anti-Spam, All In One SEO Pack, Breadcrumb NavXT, Chatra live chat software, Cloudflare, Contact Form 7, Duplicate Post, Envato Market, Facebook Reviews Pro, Facebook Reviews Widget, Google Reviews Business, Header and Footer Scripts, Heartbeat Control, WPBakery Page Builder, Mailchimp for WooCommerce, Ninja Forms, PHP Code Widget, PixelYourSite, Post SMTP, Really Simple SSL, Redirection, reSmush.it Image Optimizer, WC Restore the Purchased Items Column in Orders Page, Slider Revolution, STM Configurations, Ultimate Social Media PLUS, UpdraftPlus – Backup/Restore, Visual Composer Clipboard, Product Customer List for WooCommerce, WC Thanks Redirect, Wicked Folders Pro, Follow-Up Emails, WooCommerce PayPal Checkout Gateway, WooCommerce Google Analytics Integration, WooCommerce Product Dependencies, Woocommerce Products Per Page, WooCommerce Simple Storewide Sale, WooCommerce Waitlist, WooCommerce, Wordfence Security, WP Fastest Cache Premium, WP Fastest Cache, WP User Avatar WordPress wp_mail Filter(s): wp_staticize_emoji_for_email WordPress wp_mail_from Filter(s): wordfence::fixWPMailFromAddress WordPress phpmailer_init Action(s): wpcf7_phpmailer_init, NF_EmailTelemetry->update_metrics, FUE_Sending_Mailer:: set_dkim Postman: 1.9.8 Postman Sender Domain (Envelope|Message): laugh-masters. com.au | laugh-masters.com.au Postman Prevent Message Sender Override (Email| Name): No | No Postman Active Transport: SMTP (smtp:none:login://mail.noticecorp. com:587) Postman Active Transport Status (Ready|Connected): Yes | Yes Postman Deliveries (Success|Fail): 5619 | 73 * Thread Starter [E.T.](https://wordpress.org/support/users/eranthomson/) * (@eranthomson) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11284315) * Got this on the connectivity test but not sure what to do: [https://imgur.com/imxXl8D](https://imgur.com/imxXl8D) * [yehudah](https://wordpress.org/support/users/yehudah/) * (@yehudah) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11284363) * From the main screen * 1. press “Show All Settings” 2. Search for “Authentication” 3. Select “Plain” 4. Save * Thread Starter [E.T.](https://wordpress.org/support/users/eranthomson/) * (@eranthomson) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11284387) * Thanks. Done. Now what? * [yehudah](https://wordpress.org/support/users/yehudah/) * (@yehudah) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11284390) * Check, test mail? * Thread Starter [E.T.](https://wordpress.org/support/users/eranthomson/) * (@eranthomson) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11284400) * Still get this: [https://imgur.com/3DG3Cfe](https://imgur.com/3DG3Cfe) * Thread Starter [E.T.](https://wordpress.org/support/users/eranthomson/) * (@eranthomson) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11284426) * Re ran the wizard. Hopefully things are OK now… * Thread Starter [E.T.](https://wordpress.org/support/users/eranthomson/) * (@eranthomson) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11284429) * Test email says it was sent OK and was received. * [yehudah](https://wordpress.org/support/users/yehudah/) * (@yehudah) * [7 years, 3 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11284473) * Strange… * Glad it’s working, please update me if something changed. * [jasonordaz](https://wordpress.org/support/users/jasonordaz/) * (@jasonordaz) * [7 years, 2 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11396610) * Hi, * I have been trying to troubleshoot this email issue too, and we use Office365. This cropped up around March 7 or so. Any guidance would be helpful! * Thanks, * Jason Viewing 13 replies - 1 through 13 (of 13 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/) ## Tags * [authentication](https://wordpress.org/support/topic-tag/authentication/) * [email](https://wordpress.org/support/topic-tag/email/) * 13 replies * 3 participants * Last reply from: [jasonordaz](https://wordpress.org/support/users/jasonordaz/) * Last activity: [7 years, 2 months ago](https://wordpress.org/support/topic/incorrect-authentication-data-7/#post-11396610) * Status: not resolved