Hi, I'm using Messagewall. http://messagewall.org Linux box in DMZ filtering spam/virus/content/RFC compliance which then passes "ok" mail onto exchange on the internal network. This way, only one host needs inbound port 25 from your DMZ. There have been a few issues that I have had to iron out, but its working great now (blocked thousands of MyDoom emails during the SMTP conversation so it gets nowhere near exchange) and its completely free. Cheers. -----Original Message----- From: Ron Oglesby [mailto:roglesby@xxxxxxxxxxxx] Sent: Tuesday, 10 February 2004 9:53 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: OT: Exchange placement Even with all that I don't know if I would ever recommend putting my mailbox server out in the DMZ. Maybe and OWA server or SMTP Gateway, but with a single server doing all, keep it on the trusted network... Ron Oglesby Senior Technical Architect Microsoft MVP, Windows Server RapidApp Office 312.372.7188 Mobile 815.325.7618 email roglesby@xxxxxxxxxxxx -----Original Message----- From: Henry Sieff [mailto:hsieff@xxxxxxxxxxxx] Sent: Monday, February 09, 2004 4:41 PM To: 'thin@xxxxxxxxxxxxx' Subject: [THIN] Re: OT: Exchange placement You need to provide more information: 1) What sort of clients will be hitting your server (POP3/SMTP, IMAP, full exchange clients, OWA) 2) Are these going to be mobile (offsite)users, and if so, how are you going to give them access? Also, what are your security requirements? -----Original Message----- From: Scott [mailto:sreichardt@xxxxxxx] Sent: Monday, February 09, 2004 4:38 PM To: thin@xxxxxxxxxxxxx Subject: [THIN] OT: Exchange placement Im trying to decide whether to put my exchange 2003 server inside the network and map port 25 or put it on the DMZ. Any recommendations? Thanks, Scott ******************************************************** This Week's Sponsor - RTO Software / TScale What's keeping you from getting more from your terminal servers? Did you know, in most cases, CPU Utilization IS NOT the single biggest constraint to scaling up?! Get this free white paper to understand the real constraints & how to overcome them. SAVE MONEY by scaling-up rather than buying more servers. http://www.rtosoft.com/Enter.asp?ID=147 ********************************************************** Useful Thin Client Computing Links are available at: http://thethin.net/links.cfm *********************************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: http://thethin.net/citrixlist.cfm