Title: Intermittent conenction errors Last modified: February 20, 2023 --- # Intermittent conenction errors * Resolved [pb52](https://wordpress.org/support/users/paulbarrett1952/) * (@paulbarrett1952) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/) * For about a month now we’ve had an issue on several servers that POST SMTP is unable to send email because authentications fails or, most often, connection times out. * It happened again last night. At 23:18 we got a connection failure and that continued through the night – several service email were due to be sent but did not go. At 07:18 this morning I sent a test message, which worked. So the service healed itself. * Logically the issue would appear to be with the receiving mail server, but ours is the only service having problems, of many running on that server. But all the others use Easy SMTP. I like POST SMTP because of it’s email log, which allows me to resend failed emails and that feature is a godsend given our situation * Can you offer any advice please? * We’re using 2.3.2 free version Viewing 15 replies - 1 through 15 (of 15 total) * Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * (@haseeb0001) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16490760) * Hi [@paulbarrett1952](https://wordpress.org/support/users/paulbarrett1952/) * I hope you are doing well. * Please share Post SMTP diagnostic test report, so then I can check and get back to you with a solution. * Thanks * Thread Starter [pb52](https://wordpress.org/support/users/paulbarrett1952/) * (@paulbarrett1952) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16490983) * ```wp-block-code Mailer: postsmtpHostName: berksfhs.orgcURL Version: 7.68.0OpenSSL Version: OpenSSL/1.1.1fOS: Linux berkshire 5.4.0-117-generic #132-Ubuntu SMP Thu Jun 2 00:39:06 UTC 2022 x86_64PHP: Linux 7.4.33 C.UTF-8PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=No, zlib_encode=YesWordPress: 6.1.1 en_GB UTF-8WordPress Theme: OceanWP ChildWordPress Plugins: ManageWP - Worker, Post SMTP, Ivory Search, Admin Menu Editor Pro, AIOWPS Country Blocking Addon, All In One WP Security Reset Settings, All In One WP Security, Asgaros Forum, Autocomplete WooCommerce Orders, BNE Flyout, PublishPress Capabilities, Code Snippets, Complianz Privacy Suite (GDPR/CCPA) premium, Duplicate Menu, Yoast Duplicate Post, Dynamic User Directory Custom Sort Fld, Dynamic User Directory Exclude User Filter, Dynamic User Directory Export, Dynamic User Directory Horizontal Layout, Dynamic User Directory Meta Fields Search, Dynamic User Directory Multiple Dirs, Dynamic User Directory, Elementor Pro, Elementor, EmbedPress Pro, EmbedPress, Essential Addons for Elementor - Pro, Essential Addons for Elementor, Forminator Pro, GA Google Analytics, Loco Translate, Login or Logout Menu Item, LoginPress - Customizing the WordPress Login Screen., MC4WP: Mailchimp for WordPress, MEC Advanced Reports, MEC location and category, MEC Virtual Events, WooCommerce Integration for MEC, Media Library Enable Infinite Scrolling, MemberPress Courses, MemberPress Developer Tools, MemberPress Downloads, MemberPress Elementor Content Protection, MemberPress Importer, MemberPress MailChimp 3.0, MemberPress Plus 10 (Legacy), Modern Events Calendar, My Custom Functions, Notification, Ocean Elementor Widgets, Ocean Extra, Ocean Footer Callout, Ocean Hooks, Ocean Posts Slider, Ocean Social Sharing, Ocean Sticky Header, Redirection, Missing Bits for MemberPress, TablePress Extension: Larger Edit Input Fields, TablePress Extension: Pagination Length Change "All" entry, TablePress, Advanced Editor Tools (previously TinyMCE Advanced), UpdraftPlus - Backup/Restore, User Menus, User Role Editor, Widget Shortcode, Checkout Field Editor for WooCommerce, NextMove Lite - Thank You Page for WooCommerce, WooCommerce Stripe Gateway, WooCommerce, Yoast SEO, WP Crontrol, WP HTML Mail - Email Template Designer, WP Mailto Links - Hide & Protect Emails, WP-Optimize - Clean, Compress, Cache, WP Rollback, WP SVG Images, WP All Export - User Export Add-On Pro, WPMU DEV DashboardWordPress wp_mail Owner: /home/berkshire/webapps/berksfhs/wp-content/plugins/post-smtp/Postman/PostmanWpMailBinder.phpWordPress wp_mail Filter(s): wp_staticize_emoji_for_email, PostsmtpMailer->get_mail_args, Haet_Mail->style_mailWordPress wp_mail_from Filter(s): BracketSpace\Notification\Integration\WordPress->filter_email_from_emailWordPress wp_mail_from_name Filter(s): BracketSpace\Notification\Integration\WordPress->filter_email_from_nameWordPress phpmailer_init Action(s): PostsmtpMailer->phpmailer_smtp_initPostman: 2.3.2Postman Sender Domain (Envelope|Message): berksfhs.org | berksfhs.org.ukPostman Prevent Message Sender Override (Email|Name): No | NoPostman Active Transport: SMTP (smtp:tls:plain://emmons.uniquelyyoursmail.com:587)Postman Active Transport Status (Ready|Connected): Yes | YesPostman Deliveries (Success|Fail): 59869 | 532Postman Email Log (Enabled|Limit|Transcript Size): Yes | 5000 | 128 ``` * Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * (@haseeb0001) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16491066) * [@paulbarrett1952](https://wordpress.org/support/users/paulbarrett1952/) thanks, please share the screenshot of Post SMTP > Settings > Account tab. * Thanks * Thread Starter [pb52](https://wordpress.org/support/users/paulbarrett1952/) * (@paulbarrett1952) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16491485) * [https://drive.google.com/file/d/1D9pL9S0IKzcAOb9QM47x_L-Pl_O-j98c/view?usp=sharing](https://drive.google.com/file/d/1D9pL9S0IKzcAOb9QM47x_L-Pl_O-j98c/view?usp=sharing) * Thread Starter [pb52](https://wordpress.org/support/users/paulbarrett1952/) * (@paulbarrett1952) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16500503) * Hi, in attempt to break the deadlock I tried configuring one of our dev servers to use the Gmail API, since our main email service is hosted with them, instead of the mail in a box service provided by our website host. * We already have a service to backup Gmail to our Synology NAS using Synology’s Active Backup for Gmail, so I added an additional service for Post SMTP. We have two dev servers and two live, so I added 4 Authorised JavaScript origins and 4 Authorised Redirect URIs, corresponding tot the four server URLs * I added the client ID and secret on one of the dev sites. It was accepted and I authenticated the email address as suggested. That was a little weird, because Gmail did not ask me to allow the Post SMTP service. Instead it asked me to allow the Gmail Active backup. However, it seemed to work because a test message was sent and received with no authentication warning message. * So then I tried to set up the second dev server using the same process and credentials. That worked, up to the point of Gmail authentication. The normal Gmail box opened up, asking me to allow access (again to the Gmail Active Backup, not Post SMTP) but this time Gmail responded with “You are not authorised to use this service.” So I can send test emails but on receipt they all contain a warning that the sender could be authenticated. * Do I need to use a separate email address for each server? * Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * (@haseeb0001) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16502346) * [@paulbarrett1952](https://wordpress.org/support/users/paulbarrett1952/) * No you don’t need to use a separate email address for each server. * Share the screenshot of email which you are facing warning. * Thanks * Thread Starter [pb52](https://wordpress.org/support/users/paulbarrett1952/) * (@paulbarrett1952) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16503869) * [https://drive.google.com/file/d/1Du4Zxn32WGMrMUX2XDqiIiZcrn1urDWW/view?usp=sharing](https://drive.google.com/file/d/1Du4Zxn32WGMrMUX2XDqiIiZcrn1urDWW/view?usp=sharing) * Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * (@haseeb0001) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16509646) * Did you enabled the Gmail API in your Google Cloud console ? * Its seems like Google cloud console settings are not done correctly. * Watch [this video](https://www.youtube.com/watch?v=uN_8lNv7KBo&t=7s) and configure the API again with Post SMTP and let me know. * Thread Starter [pb52](https://wordpress.org/support/users/paulbarrett1952/) * (@paulbarrett1952) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16511296) * I’ve been through the process again, with the same result. I can configure the first server, connect it and send a test message, but when I try to use the same creds to connect to a second server, I can complete all the set up steps but as soon as I try to allow Gmail to be used, I get the error that I’m not authorised to use the service. All of the authorised JS origins and redirect URI’s are defined– four pairs of them * Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * (@haseeb0001) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16513111) * [@paulbarrett1952](https://wordpress.org/support/users/paulbarrett1952/) * I need more details about this issue; can you please contact our website so I can get a complete video of this process and get back to you with a solution? * Thanks * Thread Starter [pb52](https://wordpress.org/support/users/paulbarrett1952/) * (@paulbarrett1952) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16514021) * Sure. I’ll record a video. Thanks for your help with this it’s appreciated. * Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * (@haseeb0001) * [3 years, 3 months ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16516681) * [@paulbarrett1952](https://wordpress.org/support/users/paulbarrett1952/) Thanks * Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * (@haseeb0001) * [3 years, 1 month ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16644234) * [@paulbarrett1952](https://wordpress.org/support/users/paulbarrett1952/) Hi, *  Let me know; if your issue is resolved so we can close this thread.   * Thanks * Thread Starter [pb52](https://wordpress.org/support/users/paulbarrett1952/) * (@paulbarrett1952) * [3 years, 1 month ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16644241) * Hi Muhammad * This issue is closed. * Plugin Support [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * (@haseeb0001) * [3 years, 1 month ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16644248) * Great, thanks for letting me know. Viewing 15 replies - 1 through 15 (of 15 total) The topic ‘Intermittent conenction errors’ 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/) * 15 replies * 2 participants * Last reply from: [M Haseeb](https://wordpress.org/support/users/haseeb0001/) * Last activity: [3 years, 1 month ago](https://wordpress.org/support/topic/intermittent-conenction-errors/#post-16644248) * Status: resolved