==== Required information ====
- iRedMail version (check /etc/iredmail-release): Latest
- Linux/BSD distribution name and version: Please suggest if appropriate
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): Please suggest if appropriate
- Web server (Apache or Nginx):Please suggest if appropriate
- Manage mail accounts with iRedAdmin-Pro? No
- Related log if you're reporting an issue:
====

Good afternoon,

I would like to set up a mail server to act as an alerting system for a network. Some of the monitoring tools and utilities I am looking at have the ability to send email but not authenticate, or have insecure methods to save passwords.

Just to make this easier I am thinking about having an unauthenticated email account for such alerts on a server with no internet access, used only for this purpose. It would simply be emails passing to and from "alerts@mynetwork.local" with messages such as "Low free disk space on fileserver" etc.

Could anyone advise how I might do this? When creating a new email user a password is required. Thanks in advance and regards.