coco,

For send a mail through code,

First you need to create a new record for "mail.mail" object with your respective values like:

mail_pool = self.env['mail.mail']

values={}

values.update({'subject': 'Your subject'})

values.update({'email_to': 'To email'})

values.update({'body_html': 'body' })

values.update({'body': 'body' })

values.update({'res_id': 'obj.id' }) #[optional] here is the record id, where you want to post that email after sending

values.update({'model': ''Object Name }) #[optional] here is the object(like 'project.project')  to whose record id you want to post that email after sending

msg_id = mail_pool.create(values)

# And then call send function of the mail.mail,

if msg_id:

mail_pool.send([msg_id])

Hope it Helps you