Is it possible to customize an email template in Odoo 9 or Odoo 10?
I would like to use the mass mailing application to send emails to my contacts, but I have my own email templates already made with html and would like to be able to upload my templates or edit the email pasting my html code, is it possible? I have been trying but I couldn't find a way. Is there any way I can do it?
I have Odoo 9 but I could update to Odoo 10 if I can do this with it.