Email spam

[Bestbeast]

Hello,

Does proxmox has any security option to control mailing spam smtp or php, I was currently thinking about limiting port 25 with firewall but people could get in working on another port.

Any idea,
Thanks

 

[manu]

If you block on the firewall *outgoing* traffic on port 25 on a VM, you should get rid of pretty much all the tentatives of sending spam. But you will block all outgoing emails too.

 

[Bestbeast]

If you block on the firewall *outgoing* traffic on port 25 on a VM, you should get rid of pretty much all the tentatives of sending spam. But you will block all outgoing emails too.

Well If I configure a limit of connections in iptables, it should not block all mails no?
Apart from that proxmox do not have any other way if people just want to send mails in other type of port no?