System emails are only delivered once the System Email - Email Address From address is verified with the email provider. Steps:

1. Check the address for typos on the Email tab.
2. Click Verify next to the From address in the page header; you should see An email was sent to <address>. Please follow instructions. If a different message appears, it is the provider's error text — usually the address is invalid or sending is not yet enabled on your account.
3. Open the verification email in that mailbox (check spam) and follow its link.
4. Reload the Configuration page — the badge should now read Verified.

Note that Sprwt's shared default sender address can never show as verified for your account; use an address on your own domain.