113??? That depends on where you intend to get your DNS resolution from, but otherwise TCP 25 outbound from your host to any and a second rule of any to your host on TCP 25 should be good. If you decide that you need to have external name resolution (which you likely do from your ISP) you'll need to also set host to ISP_DNS TCP/UDP 53. -----Original Message----- From: Koie [mailto:koie@xxxxxxxxxxx] Sent: Monday, December 01, 2003 1:37 PM To: [ExchangeList] Subject: [exchangelist] Firewall Ports http://www.MSExchange.org/ Which ports need to be opened/fowarded on a hardware fireall to an exchange server to allow it to recieve/send mail? Would it be 25 and 113? Thanks, Koie ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------
