I am getting a lot of emails with the following headers:
Return-Path: <>
Delivered-To:
[email protected] ****.com
Received: from srv1. ****.com
by srv1. ****.com with LMTP
id JFcgIPqkYGHkdA8AefIgdQ
(envelope-from <>)
for <
[email protected] ****.com>; Fri, 08 Oct 2021 21:07:22 +0100
Return-path: <>...