diff --git a/addons/l10n_it_edi/models/account_invoice.py b/addons/l10n_it_edi/models/account_invoice.py
index 1ba9b6ec213..b0f801558aa 100644
--- a/addons/l10n_it_edi/models/account_invoice.py
+++ b/addons/l10n_it_edi/models/account_invoice.py
@@ -272,6 +272,7 @@ class AccountInvoice(models.Model):
         message = self.env['mail.message'].create({
             'subject': _('Sending file: %s') % (self.l10n_it_einvoice_id.name),
             'body': _('Sending file: %s to ES: %s') % (self.l10n_it_einvoice_id.name, self.env.user.company_id.l10n_it_address_recipient_fatturapa),
+            'author_id': self.env.user.partner_id.id,
             'email_from': self.env.user.company_id.l10n_it_address_send_fatturapa,
             'mail_server_id': self.env.user.company_id.l10n_it_mail_pec_server_id.id,
             'attachment_ids': [(6, 0, self.l10n_it_einvoice_id.ids)],
diff --git a/addons/website_forum/models/forum.py b/addons/website_forum/models/forum.py
index 388d9c12fb2..60a6edea242 100644
--- a/addons/website_forum/models/forum.py
+++ b/addons/website_forum/models/forum.py
@@ -685,8 +685,10 @@ class Post(models.Model):
 
         # post the message
         question = self.parent_id
+        self_sudo = self.sudo()
         values = {
-            'author_id': self.sudo().create_uid.partner_id.id,  # use sudo here because of access to res.users model
+            'author_id': self_sudo.create_uid.partner_id.id,  # use sudo here because of access to res.users model
+            'email_from': self_sudo.create_uid.email_formatted,  # use sudo here because of access to res.users model
             'body': tools.html_sanitize(self.content, sanitize_attributes=True, strip_style=True, strip_classes=True),
             'message_type': 'comment',
             'subtype': 'mail.mt_comment',