Thanks for the quick response.
I have a self managed VPS with Afrihost
HostName:
OS: Linux vv 4.4.0-130-generic #156-Ubuntu SMP Thu Jun 14 08:53:28 UTC 2018 x86_64
PHP: Linux 7.0.18-0ubuntu0.16.04.1 en_ZA.UTF-8
PHP Dependencies: iconv=Yes, spl_autoload=Yes, openssl=Yes, sockets=Yes, allow_url_fopen=Yes, mcrypt=Yes, zlib_encode=Yes
WordPress: 4.9.8 en_US UTF-8
WordPress Theme: Pharmacy
WordPress Plugins: Gravity Forms, Advanced Cron Manager, Akismet Anti-Spam, Auto Hide Admin Bar, BackWPup Pro, Ban Hammer, Contact Form 7, EWWW Image Optimizer, Woocommerce Soldout Badges – by Gema75, Google Analytics Dashboard for WP (GADWP), MetaSlider, Nav Menu Roles, PopUp Pro, Post SMTP, Regenerate Thumbnails, SendGrid, Server IP & Memory Usage Display, Simple Custom CSS, Storefront Blog Customiser, Storefront Powerpack, Title Toggle for Storefront Theme, Swift Mailer, Theme Customisations, User Role Editor, User Switching, W3 Total Cache, WooCommerce No Shipping Message, WC Password Strength Settings, Woo Checkout Field Editor Pro, Woocommerce Advanced Bulk Edit, WooCommerce Advanced Product Labels, WooCommerce Catalog Visibility Options, WooCommerce Conditional Content, WooCommerce Cost of Goods, WooCommerce Dynamic Pricing, WooCommerce PayFast Gateway, WooCommerce PayGate Gateway, WooCommerce Inventory Notifier, WooCommerce Max Quantity, WooCommerce Order Delivery, WooCommerce Order Status Manager, WooCommerce PDF Invoices & Packing Slips, WooCommerce PDF Invoices & Packing Slips Premium Templates, WooCommerce Points and Rewards, WooCommerce Product Bundles, WooCommerce Product CSV Import Suite, WooCommerce Role Based Methods, WooCommerce Shipment Tracking, WooCommerce Smart Coupons, WooCommerce Sort By Stock, WooCommerce Waitlist, WooCommerce, Yoast SEO, WP Maintenance Mode, WP Rollback, Yet Another Stars Rating
WordPress wp_mail Filter(s): wp_staticize_emoji_for_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, WC_Order_Status_Manager_Order_Status_Email->handle_multipart, WC_Order_Status_Manager_Order_Status_Email->handle_multipart, WC_Order_Status_Manager_Order_Status_Email->handle_multipart, WC_Order_Status_Manager_Order_Status_Email->handle_multipart, WC_Order_Status_Manager_Order_Status_Email->handle_multipart, WC_Order_Status_Manager_Order_Status_Email->handle_multipart, Pie_WCWL_Waitlist_Mailout->handle_multipart
Postman: 1.9.5
Postman Sender Domain (Envelope|Message): DOMAIN.co.za | DOMAIN.co.za
Postman Prevent Message Sender Override (Email|Name): No | No
Postman Active Transport: SMTP (smtp:tls:oauth2://smtp.gmail.com:587)
Postman Active Transport Status (Ready|Connected): Yes | Yes
Postman Deliveries (Success|Fail): 0 | 0