I am looking for an experienced WooCommerce & server (Namecheap VPS / Linux / cPanel) expert to help me fix multiple technical issues that appeared after migrating my website from shared hosting to a Namecheap VPS. I need someone who understands WooCommerce internals, shipping logic, add-ons, and server email configuration. WooCommerce Shipping Cost Issues (Add-ons) Shipping rates disappear when certain add-on products are added to the cart Add-ons are real products (not virtual) Shipping works when: Main product alone Some add-ons only Shipping fails when: Specific add-on combinations Add-on alone Using Flexible Shipping Product weights are set, but rules don’t always trigger Need debugging + correct configuration (not workarounds) 2️⃣ Emails Not Being Received Website shows “email sent successfully” No emails arrive (order emails, test emails) Issue started after VPS migration Need to: Check SMTP / ports Server firewall WordPress mail configuration Ensure reliable email delivery Recently migrated from shared hosting to Namecheap VPS After migration: Website sometimes slow Cart & checkout behavior inconsistent Email delivery stopped VPS details: Linux cPanel Need a full health check: PHP / MySQL Firewall Email services Performance issues Experience with: WooCommerce (shipping rules, add-ons, checkout) Flexible Shipping plugin Linux VPS (Namecheap preferred) SMTP / mail debugging Ability to: Diagnose root causes Fix issues properly (not temporary hacks) Explain what was wrong and what was fixed