- Look in your Spam or Junk folder, in webmail as well as your app.
- Check the mailbox isn’t full: cPanel → Email Accounts shows how much space it’s using.
- Make sure your domain’s MX records point to the right place (cPanel → Email Routing or Zone Editor).
- Check for a forwarder or filter moving the mail (cPanel → Forwarders and Email Filters).
- Ask the sender for any bounce message they received; it usually says exactly what went wrong.
Changed nameservers recently? Email can take up to 24–48 hours to settle while DNS updates.
Still missing? submit a ticket with the sender’s address and roughly when it was sent, and we’ll trace it.