Change "email send from"

How to change "email send from"?
Table settings contains BLOBs

update `settings` set `value` = 'noreply@kitsune.solar' where `key` = 'email_from';

should be mostly correct; did this from the top of my head

email_from -> mail_from

update `settings` set `value` = 'noreply@example.com' where `key` = 'mail_from';