My Magento store was migrated to a Hostinger VPS and, ever since the move, no “Order Confirmation” messages reach customers or my own business inbox. I’m routing mail through a third-party provider such as Gmail/SendGrid, but I’m unsure whether the settings were carried over correctly during the migration, or whether something deeper in Magento, postfix/Exim or the VPS firewall is blocking outbound traffic. Or is an SMTP issue where a free extension needs to be added to Magento? Hostinger support has already reviewed their side; I can forward the full chat transcript for context. What I need now is a clean, provable fix inside Magento and on the server so every new order triggers a confirmation email without fail. Acceptance criteria • Order placement triggers the Magento “Order Confirmation” template to my customer address and to the store’s sales mailbox. • Messages arrive in the inbox (not spam) when tested with Gmail. • All changes are documented so I can replicate them if we move servers again. I’ll supply SSH, Magento admin and email-service credentials as soon as we agree on the safest way to exchange them, along with the Hostinger VPS specs and transcript. Please advise if you have experience is resolving this issue and how much you will charge.