I have a primary and secondary domain within one G Apps account. Using me@primarydomain.com with several alias' to receive/monitor all inbound mail for both brands. So within this plugin, I hoped to set the FROM as an alias, orders@secondarydomain.com. But have to include my primary username and password in the settings. The resulting test shows the email sent from the primary user, instead of the alias for the secondary domain.
To make it work, I had to create a new user account instead of an alias, and use those credentials in the plugin's setup.
Any thoughts on whether or how an alias on a secondary domain can be used to send out emails from wordpress?
Thanks.