|
|
|
|
|
|
|
|
 |
 |
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [FW1] Spam Mail problem
Chris F schrieb: > --- Rajesh Bandar <[email protected]> wrote: > > I blocked the port no 25 for one of the Windows NT > > machines on our network. But > > still someone is using our server to send spam mails > > accross the internet. On > > the Firewall do I need to do anything else to stop > > spamming. One solution is to configure the mailserver to disallow nonlocal mail relaying. If that is not possible or too complicated, you may do that on the firewall following this receipt. Create a few rules and services. service SMTP.ANY: just keep the defaults service SMTP.INCOMING: defaults, plus to: *@your.company.adr if you have a SMTP relay in a DMZ create (from/to/service): Any dmz.mailserver smtp-->SMTP.INCOMING dmz.mailserver Any smtp-->SMTP.ANY internal.mailserver dmz.mailserver smtp-->SMTP.ANY If you do not have a DMZ (or mailserver in DMZ), use this instead: Any mailserver smtp-->SMTP.INCOMING mailserver Any smtp-->SMTP.ANY HTH Volker -- Volker Tanger <[email protected]> Wrangelstr. 100, 10997 Berlin, Germany DiSCON GmbH - Internet Solutions http://www.discon.de/ ================================================================================ To unsubscribe from this mailing list, please see the instructions at http://www.checkpoint.com/services/mailing.html ================================================================================
|
||||||||||
 |
 |
 |
 |
 |
 |
 |
 |
 |
|
