Exchange 2K is getting hammered

We are getting mercilessly hammered with what looks like people
relaying spam through our Exchange server. I followed the advice last
year to make sure we aren't an open relay but the Current Sessions
queue in SMTP is constantly filled with email from outside domains and
we are getting 10-20K undeliverable emails everyday.

If I adjust the Access checkboxes so Anonymous Access is removed the
spam stops but we don't receive outside email. This is an Exchange
2000 server with SP3 on SBS2K and we are hosting our own email for
three different domains.

I talked to our consultant today and he suggested putting another box
in front of the Exchange server so it can get hammered and not the SBS
server. I'm going to research this and I was wondering if anyone else
had some alternate ideas on dealing with this.

Thanks!
.

Relevant Pages

  • Logs
    ... I have gained access to the log files and at first glance (tho the logs aren't exactly comprehensible), it would appear that the Exchange server is relaying SPAM. ... Primary function: Coprocessor ...
    (microsoft.public.exchange.admin)
  • Exchange links
    ... We are about to go through network changes within our organisation and would ... We have two independant domains abc.com and xyz.com currently on different ... has its own exchange server, own email addresses and own Internet ... Any advice would be greatly recieved ...
    (microsoft.public.exchange2000.connectivity)
  • Re: Exchange Problems
    ... Am looking for some advice if possible. ... We have a customer who is running a business with two offices in different areas of the country ... Both offices are using Windows Small business server 2003 with exchange, the two offices are not linked in any way. ... When a mail is sent from one office to the other, as the Email address is the same the Exchange server thinks that the user is in the office that the mail originated and does not get delivreed to the other office. ...
    (microsoft.public.windows.server.sbs)
  • RAID Advice for new Exchange 2003 Server
    ... I am looking for advice on the specifications for a new Exchange Server. ... Cost is not much of an issue so I am looking for something that will provide ... Would I be better off with a RAID 50 configure on the IS or maybe even 1+0 ...
    (microsoft.public.exchange2000.general)
  • VPN, Exchange and activesync
    ... I need some advice - HP's docs are worthless on this, ... etc from exchange server directly to my pocket pc. ... I get errors and I cannot get the VPN to connect. ...
    (microsoft.public.pocketpc.activesync)