Greetings, well,
We need the AV, because we have a lot of windows PC, I don’t use all the NS’s features. Mainly I use it for authentication, later I plan to use to apply GPOs and some other services joined on the AD.
From some years ago I use (Citadel) as our mail server, is very good and “simple” to setup, but I got an old version that I plan to upgrade. This mail server has clamav + spamassassin, but some nasty stuff can go though and is there when the AV is a need, the infections we where having occurs via USB sticks, and there clamav can’t help.
It can be adjusted to be more or less strict; but yesterday I add some scan exceptions for the shared folders on NS, that I’m still monitoring.
I don’t want to overload the principal role of this NS (Active Directory / Authentication) and want to keep this NS as simple as I can, for easy backup and recovery; I likely want to install more slaves of NS for the other features. But, I want to use a NAS for our users files, currently evaluating if buying a Synology or just buy hardware/server to install Nas4Free now Xigmanas.
Yesterday, after the upgrading NS, I got this issue: LDAP client internal error (AccountProvider_Error_82), that’s why I want a simple and stable NS, without many services to monitor.
I wonder if having so many servers is more that I can chew 
.
(Proxmox) + (NS)
(~70 windows clients)
(1 sql server/w2012r2) + (ERP, Payroll system, and a lot of apps)
(2 mail servers)
(3 small NAS for backups)
(NAS for files and storage buy or build)
(2 web servers | DNS servers | )
(The old w2k server, soon to be decommissioned - hopefully)
Regards