On 10-11-21 02:58 AM, Guruprasad wrote:
I am using PFSense firewall in my office. I have a windows based mail
server in LAN and all the systems in LAN send mails thru the
mailserver(icewarp merak mail server). There is no spam problem.
But the moment I allow my branch office people to send/receive mails
using my local mail server via my ISP allocated static IP ( this is
configured in pfsense WAN), lots of spam/virus being relayed thru my
mail server and I could see the same in my mail server Log.
Since many roaming users/branch office people are connected to this
mail server, how do I find out which remote client is compromised and
sending this spams using my internal mail server as a relay host.
Secondly is there any AV package for pfsense which can prevent smpt,
pop, ftp, smb viruses apart from http ( I have installed clamAV)
-guru
I very hope you allow only authenticated clients to use your smtp-server
to send e-mails, don't you?
Evgeny
