Problem statement
After setting up Sendgrid as the SMTP provider, passwordless emails are no longer being received. There are “Failed Notification” (type: fn) entries in the tenant logs with the following error description:
The from address does not match a verified Sender Identity. Mail cannot be sent until this error is resolved. Visit Sender Identity | Twilio to see the Sender Identity requirements
Cause
In the Email passwordless connection settings, the ‘From’ email was set to <root@auth0.com>.
Solution
Navigate to Dashboard > Authentication > Passwordless , click on Email and add an email address that is registered as a Sender Identity with Sendgrid in the ‘From’ field.
