If Elementor reports a successful submission but no email arrives, first decide whether the form action ran and created an email request. A green success message proves the frontend request completed, not that the mail provider accepted or delivered a message.
Check the configured Actions After Submit
Confirm Email is present and inspect To, From, Reply-To, subject and conditional/dynamic values.
Use a unique submission marker
Add a harmless test identifier so the Elementor submission, WordPress mail event and provider log can be correlated.
Separate form storage from mail
If submissions are stored, verify the exact entry exists. That narrows the failure to post-submission action/transport rather than browser validation.
Inspect SMTP/provider response
Accepted, bounced, deferred and suppressed messages require different fixes. Read status, not only the WordPress plugin success notice.
Test recipient-specific behavior
Send the same event to a controlled external mailbox and the production recipient; different outcomes point to filtering/routing.
Verify Reply-To safely
Use the visitor address as Reply-To rather than forging the From domain, which can break authentication and DMARC.
Follow entries exist but notifications are missing and then trace the message to the mailbox.
Keep an Elementor action trace for one submission
For a controlled entry, record form ID, submission/request ID, each configured action, whether that action started and finished, and the provider message ID if an email was created. If Email fails but CRM/webhook succeeds, the form submission itself is healthy. If no post-submit action runs, stay inside Elementor/WordPress instead of changing DNS or SMTP.