Looker instances historically sent email with a “from” field of looker@looker.com when configured to use the default SMTP mail settings.
Email From Value Changed
In 3.32+, the default from email was changed as follows:
old value: looker@looker.com
new value: ``Looker noreply@lookermail.com```
This change was made to improve email deliverability. Instances created prior to 3.32 have preserved the old email address as a legacy feature to allow customers to manage the migration to the new address.
Applying the Change
When you uncheck this option in the Legacy Features Panel, the new address, Looker <noreply@lookermail.com> will be used. Before unchecking, ensure your users update email filters that rely on the current “from” field of Looker emails.
This setting has no effect if you are using custom SMTP settings.
End of Life
This feature will be toggled offin 3.44 and removed in 3.46.