Please see attached diagnostics report:
Mailer: postsmtp
HostName: stockportcounty.com
cURL Version: 7.76.1
OpenSSL Version: OpenSSL/3.0.7
OS: 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_64
PHP: Linux 8.1.29 C.UTF-8
PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=No, zlib_encode=Yes
WordPress: 6.6.2 en_US UTF-8
WordPress Theme: Platform81 Theme
WordPress 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 Migrate
WordPress wp_mail Owner: /home/stockportcounty/public_html/wp-content/plugins/post-smtp/Postman/PostmanWpMailBinder.php
WordPress wp_mail Filter(s): wp_staticize_emoji_for_email, PostsmtpMailer->get_mail_args
WordPress phpmailer_init Action(s): wpcf7_phpmailer_init, PostsmtpMailer->phpmailer_smtp_init
Postman: 2.9.8
Postman Sender Domain (Envelope|Message): stockportcounty.com | stockportcounty.com
Postman Prevent Message Sender Override (Email|Name): No | No
Postman Active Transport: Other SMTP (smtp:tls:login://smtp.office365.com:587)
Postman Active Transport Status (Ready|Connected): Yes | Yes
Postman Deliveries (Success|Fail): 35240 | 271
Screenshot of the connectivity test also https://ibb.co/zhXqJfQ