Antispam

I use routeros 2.9.30, is there a way to detect and prevent spam with firewall filters ?

Thanks

Sure, block port 25 and 110.

of course, GotNets solution works 100%, but there is one slight problem with it - it drops everything. even non-spam (ham). Only solution is to run some powerful anti-spam software on your mail server like spamassassin, but then you have to search other forums…

You can see in the next thread the solution which i invented and work excellent!

http://forum.mikrotik.com/t/how-to-stop-viruses/9487/1

Good luck and regards!

Alessio Garavano
http://www.isparg.com.ar