social/mail_outbound_static/models/ir_mail_server.py

# Copyright 2017 LasLabs Inc.
# License LGPL-3.0 or later (http://www.gnu.org/licenses/lgpl.html).

from odoo import api, fields, models


class IrMailServer(models.Model):

    _inherit = 'ir.mail_server'

    smtp_from = fields.Char(
        string='Email From',
        help='Set this in order to email from a specific address.'
    )

    @api.model
    def send_email(self, message, mail_server_id=None, smtp_server=None,
                   *args, **kwargs):

        # Replicate logic from core to get mail server
        mail_server = None
        if mail_server_id:
            mail_server = self.sudo().browse(mail_server_id)
        elif not smtp_server:
            mail_server = self.sudo().search([], order='sequence', limit=1)

        if mail_server and mail_server.smtp_from:
            split_from = message['From'].rsplit(' <', 1)
            if len(split_from) > 1:
                email_from = '%s <%s>' % (
                    split_from[0], mail_server.smtp_from,
                )
            else:
                email_from = mail_server.smtp_from

            message.replace_header('From', email_from)
            bounce_alias = self.env['ir.config_parameter'].get_param(
                "mail.bounce.alias")
            if not bounce_alias:
                # then, bounce handling is disabled and we want
                # Return-Path = From
                if 'Return-Path' in message:
                    message.replace_header('Return-Path', email_from)
                else:
                    message.add_header('Return-Path', email_from)

        return super(IrMailServer, self).send_email(
            message, mail_server_id, smtp_server, *args, **kwargs
        )