@api.model

    def _get_duplicated_leads_by_emails(self, partner_id, email, include_lost=False):

        """ Search for opportunities that have the same partner and that arent done or cancelled """

        partner_match_domain = []

        for email in set(email_split(email) + [email]):

            partner_match_domain.append(('email_from', '=ilike', email))

        if partner_id:

            partner_match_domain.append(('partner_id', '=', partner_id))

        partner_match_domain = ['|'] * (len(partner_match_domain) - 1) + partner_match_domain

        if not partner_match_domain:

            return []

        domain = partner_match_domain

        if not include_lost:

            domain += ['&', ('active', '=', True), ('probability', '<', 100)]

        else:

            domain += ['|', '&', ('type', '=', 'lead'), ('active', '=', True), ('type', '=', 'opportunity')]

        return self.search(domain)