Or if you are executing a telnet attempt from within your network, many firewall/gateway products do not allow traffic inside -> outside -> in.
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Dean Cunningham Posted At: Wednesday, October 31, 2007 3:08 PM Posted To: swynk Conversation: why can not telnet (on port 110 or 25) to exchange server when is connected to internet via NAT Subject: RE: why can not telnet (on port 110 or 25) to exchange server when is connected to internet via NAT There is no difference. But.... Where are you teleneting from... home???? The ISP you use may block port 25 outbound from your home PC (or from wherever you are testing. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, 31 October 2007 20:50 To: Exchange Discussions Subject: why can not telnet (on port 110 or 25) to exchange server when is connected to internet via NAT Hi All, I Have a static ip for my NAT, my exchange server is connected to Internet via this NAT. exchange server and NATs Machins are different, I try to telnet to NAT on Port 110 or 25: telnet myserver.com 110 , or telnet myserver.com 25, but I can't connect to the exchange server. because NAT doesn't send packets to the exchange machin. packet arrives to NAT machin but not to exchange server machin. but when i try to send mail via yahoo or gmail, Exchange Server recieves mails, and if turn on IP Sniffer we can see packets on port 25 are exists in exchange server and NAT (both of them) whats a difference from my action (try to telnet on 25) and gmail (send smtp packet on port 25) _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] .com Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with. ********************************************************************** Have you clicked on yet? www.nrc.govt.nz ********************************************************************** NORTHLAND REGIONAL COUNCIL This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify [EMAIL PROTECTED] ********************************************************************** _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with. _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. Attn: Discussion List Management 475 Park Avenue South New York, NY 10016 Please include the email address which you have been contacted with.
