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diff --git a/addons/mail/wizard/mail_template_preview.py b/addons/mail/wizard/mail_template_preview.py
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+++ b/addons/mail/wizard/mail_template_preview.py
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+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class MailTemplatePreview(models.TransientModel):
+    _name = 'mail.template.preview'
+    _description = 'Email Template Preview'
+    _MAIL_TEMPLATE_FIELDS = ['subject', 'body_html', 'email_from', 'email_to',
+                             'email_cc', 'reply_to', 'scheduled_date', 'attachment_ids']
+
+    @api.model
+    def _selection_target_model(self):
+        return [(model.model, model.name) for model in self.env['ir.model'].search([])]
+
+    @api.model
+    def _selection_languages(self):
+        return self.env['res.lang'].get_installed()
+
+    @api.model
+    def default_get(self, fields):
+        result = super(MailTemplatePreview, self).default_get(fields)
+        if not result.get('mail_template_id') or 'resource_ref' not in fields:
+            return result
+        mail_template = self.env['mail.template'].browse(result['mail_template_id'])
+        res = self.env[mail_template.model_id.model].search([], limit=1)
+        if res:
+            result['resource_ref'] = '%s,%s' % (mail_template.model_id.model, res.id)
+        return result
+
+    mail_template_id = fields.Many2one('mail.template', string='Related Mail Template', required=True)
+    model_id = fields.Many2one('ir.model', string='Targeted model', related="mail_template_id.model_id")
+    resource_ref = fields.Reference(string='Record', selection='_selection_target_model')
+    lang = fields.Selection(_selection_languages, string='Template Preview Language')
+    no_record = fields.Boolean('No Record', compute='_compute_no_record')
+    error_msg = fields.Char('Error Message', readonly=True)
+    # Fields same than the mail.template model, computed with resource_ref and lang
+    subject = fields.Char('Subject', compute='_compute_mail_template_fields')
+    email_from = fields.Char('From', compute='_compute_mail_template_fields', help="Sender address")
+    email_to = fields.Char('To', compute='_compute_mail_template_fields',
+                           help="Comma-separated recipient addresses")
+    email_cc = fields.Char('Cc', compute='_compute_mail_template_fields', help="Carbon copy recipients")
+    reply_to = fields.Char('Reply-To', compute='_compute_mail_template_fields', help="Preferred response address")
+    scheduled_date = fields.Char('Scheduled Date', compute='_compute_mail_template_fields',
+                                 help="The queue manager will send the email after the date")
+    body_html = fields.Html('Body', compute='_compute_mail_template_fields', sanitize=False)
+    attachment_ids = fields.Many2many('ir.attachment', 'Attachments', compute='_compute_mail_template_fields')
+    # Extra fields info generated by generate_email
+    partner_ids = fields.Many2many('res.partner', string='Recipients', compute='_compute_mail_template_fields')
+
+    @api.depends('model_id')
+    def _compute_no_record(self):
+        for preview in self:
+            preview.no_record = (self.env[preview.model_id.model].search_count([]) == 0) if preview.model_id else True
+
+    @api.depends('lang', 'resource_ref')
+    def _compute_mail_template_fields(self):
+        """ Preview the mail template (body, subject, ...) depending of the language and
+        the record reference, more precisely the record id for the defined model of the mail template.
+        If no record id is selectable/set, the jinja placeholders won't be replace in the display information. """
+        copy_depends_values = {'lang': self.lang}
+        mail_template = self.mail_template_id.with_context(lang=self.lang)
+        try:
+            if not self.resource_ref:
+                self._set_mail_attributes()
+            else:
+                copy_depends_values['resource_ref'] = '%s,%s' % (self.resource_ref._name, self.resource_ref.id)
+                mail_values = mail_template.with_context(template_preview_lang=self.lang).generate_email(
+                    self.resource_ref.id, self._MAIL_TEMPLATE_FIELDS)
+                self._set_mail_attributes(values=mail_values)
+            self.error_msg = False
+        except UserError as user_error:
+            self._set_mail_attributes()
+            self.error_msg = user_error.args[0]
+        finally:
+            # Avoid to be change by a invalidate_cache call (in generate_mail), e.g. Quotation / Order report
+            for key, value in copy_depends_values.items():
+                self[key] = value
+
+    def _set_mail_attributes(self, values=None):
+        for field in self._MAIL_TEMPLATE_FIELDS:
+            field_value = values.get(field, False) if values else self.mail_template_id[field]
+            self[field] = field_value
+        self.partner_ids = values.get('partner_ids', False) if values else False