With MailTask you can:
1) send email with attachments directly from Tasker;
2) read your emails from Tasker;
3) delete your emails (or put them in the trash).
4) remove emails from trash
This plugin supports only Gmail accounts for the actions 2), 3) and 4)
Q: Mail are not sent, why?
A: The first time you need to grant authorization to your gmail account, so you can try to execute the task manually. If there is a problem you see a notification, tap on the notification to fix
Q: Mail are sent with delay, why?
A: Whit Android 6+ Doze could stop the network connection, in this case you could exclude the app from battery optimization