After I upgrade from 2.2.6 to 2.2.7. The sender of the order confirmation is changed from sales@mydomain.com to myusername@@c59619.sgvps.net
I checked the config->sales email and general->store email addresses,there are set correctly as sales@mydomain.com.
I do not have smtp set up, i'm using default phpmailer and my hosting is siteground.
SELECT * FROM 'core_config_data' where 'value' like "%@c59619.sgvps.net%";
– Vinz Jul 9 at 19:06