All you need to do is to itemise all the services you'll like to use and note the corresponding TCP port required for them to run. Opening 25 & 110 allows you to use POP and SMTP. While you're at it you can browse through this <?xml:namespace prefix = p ns = "urn:schemas-microsoft-com:office:powerpoint" /> Microsoft article Q280132 ----------------------------------------------------------------------- Opeyemi Olomo Corporate Development, Ocean and Oil Holdings 10th Floor, The Octagon 13A AJ Marinho Drive, Victoria Island Lagos Office Tel No: +234 1 320 0818-9 Ext: 123 Mobile No: +234 802 291 0164 ----------------------------------------------------------------------- -----Original Message----- From: Robert Abela [mailto:robert@xxxxxxx] Sent: Tuesday, March 25, 2003 10:15 AM To: [ExchangeList] Subject: [exchangelist] RE: ex2k n firewall http://www.MSExchange.org/ It depends if you are using any other protocols like IMAP etc, and it depends if you're using pop3 on ssl or no. -----Original Message----- From: Hery [mailto:hery@xxxxxxxxxxxxxx] Sent: Tuesday, March 25, 2003 5:49 AM To: [ExchangeList] Subject: [exchangelist] ex2k n firewall http://www.MSExchange.org/ hi all, i want setup ex2k behind firewall. what ports must be open / stealth besides 110 and 25 ? thx hery ------------------------------------------------------ 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 ------------------------------------------------------ ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: robert@xxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') ------------------------------------------------------ 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 ------------------------------------------------------ ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ You are currently subscribed to this MSExchange.org Discussion List as: o.olomo@xxxxxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') This mail was content checked for malicious code and viruses by GFI MailSecurity. GFI MailSecurity provides email content checking, exploit detection and anti-virus for Exchange & SMTP servers. Spam, viruses, dangerous attachments and offensive content are removed automatically. Key features include: Multiple virus engines; Email content & attachment checking; Exploit shield - email intrusion detection & defence; Email threats engine - analyses & defuses HTML scripts, .exe files & more. In addition to GFI MailSecurity, GFI also produces the GFI FAXmaker fax server & GFI LANguard network security product ranges. For more information on our products, please visit <http://www.gfi.com> http://www.gfi.com. This disclaimer was sent by GFI MailEssentials for Exchange/SMTP.