SMTP Error

Hello

I use Post SMTP on two website, one without issue but this website I am consistently getting the message “Postman is not configured and is mimicking out of the box wordpress delivery email.

I have run diagnostics and updated the site email address but I cannot figure this out. Here is a message that I was advised to copy and send for support. Can anyone advise please?

Mailer: postsmtp
HostName: ukcbdwholesale.co.uk
cURL Version: 7.29.0
OpenSSL Version: NSS/3.53.1
OS: Linux 12.acres.unifyserv.co.uk 3.10.0-962.3.2.lve1.5.54.el7.x86_64 #1 SMP Thu Apr 29 11:16:05 UTC 2021 x86_64
PHP: Linux 7.4.26 en_US.UTF-8
PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=No, zlib_encode=Yes
WordPress: 5.8.2 en_GB UTF-8
WordPress Theme: Astra
WordPress Plugins: Customer Reviews for WooCommerce, Post SMTP, Simple Banner, Product Subtitle For WooCommerce, Advanced Shipment Tracking for WooCommerce, WooCommerce Cart Abandonment Recovery, WPC Smart Wishlist for WooCommerce, Print Invoice & Delivery Notes for WooCommerce, WooCommerce, WP Fastest Cache, WPS Hide Login
WordPress wp_mail Owner: /var/www/vhosts/naturesmediccbd.co.uk/ukcbdwholesale.co.uk/wp-content/plugins/post-smtp/Postman/PostmanWpMailBinder.php
WordPress wp_mail Filter(s): wp_staticize_emoji_for_email, PostsmtpMailer->get_mail_args
Postman: 2.0.23
Postman Sender Domain (Envelope|Message):  | ukcbdwholesale.co.uk
Postman Prevent Message Sender Override (Email|Name): Yes | Yes
Postman Active Transport: Default (smtp:none:none://localhost:25)
Postman Active Transport Status (Ready|Connected): No | Yes
Postman Deliveries (Success|Fail): 11 | 1

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