diff --git a/addons/website_mail_channel/models/mail_channel.py b/addons/website_mail_channel/models/mail_channel.py
index e2d6a7a452b..a06fda8e0d5 100644
--- a/addons/website_mail_channel/models/mail_channel.py
+++ b/addons/website_mail_channel/models/mail_channel.py
@@ -19,7 +19,9 @@ class MailGroup(models.Model):
         return headers
 
     def _send_confirmation_email(self, partner_ids, unsubscribe=False):
-        base_url = self.env['ir.config_parameter'].sudo().get_param('web.base.url')
+        website = self.env['website'].get_current_website()
+        base_url = website.get_base_url()
+
         route = "/groups/%(action)s/%(channel)s/%(partner)s/%(token)s"
         if unsubscribe:
             template = self.env.ref('website_mail_channel.mail_template_list_unsubscribe')
@@ -38,9 +40,13 @@ class MailGroup(models.Model):
                 'partner': partner_id,
                 'token': token,
             })
-            template.with_context(token_url=token_url).send_mail(self.id,
+            template.with_context(token_url=token_url).send_mail(
+                self.id,
                 force_send=True,
-                email_values={'recipient_ids': [(4, partner_id)]}
+                email_values={
+                    'recipient_ids': [(4, partner_id)],
+                    'email_from': website.company_id.email,
+                }
             )
 
         return True