I think maybe I did not explain this feature request clearly enough. What I am asking is even I have configured the smtp server in the setting-> Email configuration, I still can not select smtp as the way to share the screenshots taken by 'take screenshot' action. To illustrate, please see following screenshots:
1. When I add an take screenshot actoin, I choose to send the screenshot via email.
2. Then select how to handle the screenshot by selecting send via email. There is only option for gmail. When I check the add account, it will only add gmail account. There is no way to add smtp account here.
To compare, if I use share the last photo, I can select smtp server to send the photo by email. And I wish the take screenshot could have the same option.