Support » Plugin: Post SMTP Mailer/Email Log - Best Mail SMTP For WP » Sending the message: Ajax Error

  • Good day Support,

    Please assist. I am getting this error when sending a test email

    An unexpected error occurred:

    There has been a critical error on this website.

    When checking in console, admin-ajax.php is returning an error 500.

    The page I need help with: [log in to see the link]

Viewing 7 replies - 1 through 7 (of 7 total)
  • Hi @trixxmanaty,

    Please could you paste a copy of your diagnostics log from Post SMTP? Thank you.

    Kind Regards,

    Thread Starter trixxmanaty


    Hi @tneville,

    Thanks for your quick response.

    Here is the diagnostic log.

    Mailer: postsmtp
    cURL Version: 7.45.0
    OpenSSL Version: OpenSSL/1.0.1e
    OS: Linux 4.4.216-1.el6.elrepo.x86_64 #1 SMP Wed Mar 11 09:29:51 EDT 2020 x86_64
    PHP: Linux 7.3.12 C
    PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=Yes, zlib_encode=Yes
    WordPress: 5.6 en_US UTF-8
    WordPress Theme: trixxmanaty
    WordPress Plugins: Ecommerce Order Tracking and Shipment Notifications - AfterShip, Auto Image Alt, iThemes Security, Classic Editor, Code Snippets, Contact Form 7, Facebook for WooCommerce, Flexible Shipping, Google Analytics for WordPress by MonsterInsights, reCaptcha by BestWebSoft, HTML Page Sitemap, Imagify, Jetpack by, Salient WPBakery Page Builder, Kadence WooCommerce Email Designer, Mailchimp for WooCommerce, NotificationX, Facebook for WordPress, WooCommerce PayZone Secure Payments (redirect), Post SMTP, Self-Hosted Google Fonts, UpdraftPlus - Backup/Restore, Upsell Order Bump Offer for WooCommerce, Advanced Order Export For WooCommerce, Abandoned Cart Lite for WooCommerce, WooCommerce Export Customer Email, WooCommerce PDF Invoices & Packing Slips, WooCommerce, Yoast SEO, WP Mail Logging, WP Rocket, Markup (JSON-LD) structured in, WhatsApp Click to Chat
    WordPress wp_mail Owner: /var/www/wp-content/plugins/post-smtp/Postman/PostmanWpMailBinder.php
    WordPress wp_mail Filter(s): wp_staticize_emoji_for_email, WPO\WC\PDF_Invoices\Main->set_phpmailer_validator, PostsmtpMailer->get_mail_args, No3x\WPML\WPML_Plugin->log_email
    WordPress phpmailer_init Action(s): wpcf7_phpmailer_init, WC_Email_New_Order->handle_multipart, WC_Email_Cancelled_Order->handle_multipart, WC_Email_Failed_Order->handle_multipart, WC_Email_Customer_On_Hold_Order->handle_multipart, WC_Email_Customer_Processing_Order->handle_multipart, WC_Email_Customer_Completed_Order->handle_multipart, WC_Email_Customer_Refunded_Order->handle_multipart, WC_Email_Customer_Invoice->handle_multipart, WC_Email_Customer_Note->handle_multipart, WC_Email_Customer_Reset_Password->handle_multipart, WC_Email_Customer_New_Account->handle_multipart
    Postman: 2.0.20
    Postman Sender Domain (Envelope|Message): |
    Postman Prevent Message Sender Override (Email|Name): No | No
    Postman Active Transport: Gmail API (https:oauth2://
    Postman Active Transport Status (Ready|Connected): Yes | Yes
    Postman Deliveries (Success|Fail): 9496 | 539

    It seems to work if I disable the Facebook for WordPress plugin.


    Hi @trixxmanaty,

    Your set up looks fine, if it is working when ‘Facebook for WordPress’ is disabled then there is probably an Ajax conflict there.

    I will ask the developer to take a look at this when he is able. Please be aware he is very busy – but we will aim to get a fix for this as soon as possible.

    Thanks for your patience.

    Kind Regards,

    Thread Starter trixxmanaty


    Hi @tneville,

    Noted – thank you for your assistance.

    I’m getting this same exact error unfortunately. I do not use any facebook-related plugins on my website though. It started happening to me last night. Was there ever a fix for this?

    Hi @mreed3689,

    No fix as yet, I’m afraid.

    Kind Regards,

    Ok thanks for the reply. I’m happy to help if I can provide you with anymore info. I sent my diagnostic log directly to the plugin author on Thursday night/Friday morning.

Viewing 7 replies - 1 through 7 (of 7 total)
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