Hi, I have problem with inbound connection on SMTP virtual server on Exchange 2003, I make Port Forwarding from public IP to local from port 25 to 25 , when use telnet from Internet to SMTP server, i get message with code 220 (connection success) but with ***** ( 220 *************) and other commands is with message 500 5.3.3 Unrecognized command.. If I change port forwarding ( for example 255 to 25 ) everything is OK. If I change on SMTP virtual server port from 25 on for example to 255 and make again port forwarding Public IP port 255 to local IP and port 255 everything is OK. I try turn off FW and SPI again no working. And telnet from local network working Can somebody help me?
pietro wrote: > Hi, I have problem with inbound connection on SMTP virtual server on > Exchange 2003, > I make Port Forwarding from public IP to local from port 25 to 25 , > when use telnet from Internet to SMTP server, i get message with code > 220 (connection success) but with ***** ( 220 *************) and > other commands is with message 500 5.3.3 Unrecognized command.. > If I change port forwarding ( for example 255 to 25 ) everything is > OK. > If I change on SMTP virtual server port from 25 on for example to > 255 and make again port forwarding Public IP port 255 to local IP > and port 255 everything is OK. > I try turn off FW and SPI again no working. > And telnet from local network working > Can somebody help me? Do you have a Cisco PIX? turn off MailGuard.
NO SMC Barricade Wirreles Broadband router "Lanwench [MVP - Exchange]" wrote: > pietro wrote: > > Hi, I have problem with inbound connection on SMTP virtual server on > > Exchange 2003, > > I make Port Forwarding from public IP to local from port 25 to 25 , > > when use telnet from Internet to SMTP server, i get message with code > > 220 (connection success) but with ***** ( 220 *************) and > > other commands is with message 500 5.3.3 Unrecognized command.. > > If I change port forwarding ( for example 255 to 25 ) everything is > > OK. > > If I change on SMTP virtual server port from 25 on for example to > > 255 and make again port forwarding Public IP port 255 to local IP > > and port 255 everything is OK. > > I try turn off FW and SPI again no working. > > And telnet from local network working > > Can somebody help me? > > Do you have a Cisco PIX? turn off MailGuard. > > >
pietro wrote: > NO SMC Barricade Wirreles Broadband router Odd, because the (***** ( 220 *************) looks awfully Pix-ish. The problem has to be something in your router or an upstream one. If you telnet on port 25 within your LAN I'll bet you don't have these problems, right? I wouldn't change ports on the vsmtp server (or anything else) unless absolutely necessary. > > "Lanwench [MVP - Exchange]" wrote: > >> pietro wrote: >>> Hi, I have problem with inbound connection on SMTP virtual server >>> on Exchange 2003, >>> I make Port Forwarding from public IP to local from port 25 to 25 , >>> when use telnet from Internet to SMTP server, i get message with >>> code 220 (connection success) but with ***** ( 220 *************) >>> and other commands is with message 500 5.3.3 Unrecognized >>> command.. If I change port forwarding ( for example 255 to 25 ) >>> everything is OK. >>> If I change on SMTP virtual server port from 25 on for example to >>> 255 and make again port forwarding Public IP port 255 to local IP >>> and port 255 everything is OK. >>> I try turn off FW and SPI again no working. >>> And telnet from local network working >>> Can somebody help me? >> >> Do you have a Cisco PIX? turn off MailGuard.
Yes, I think so. Because if I change public port to other and local leave the same (255 to 25 ) telnet working fine. And within my network is it without problem. So I mean that my FW testing protokol SMTP and changing data stream and than Exchange can not read the packets Many Thanks Petr "Lanwench [MVP - Exchange]" wrote: > pietro wrote: > > NO SMC Barricade Wirreles Broadband router > > Odd, because the (***** ( 220 *************) looks awfully Pix-ish. The > problem has to be something in your router or an upstream one. If you telnet > on port 25 within your LAN I'll bet you don't have these problems, right? > > I wouldn't change ports on the vsmtp server (or anything else) unless > absolutely necessary. > > > > > "Lanwench [MVP - Exchange]" wrote: > > > >> pietro wrote: > >>> Hi, I have problem with inbound connection on SMTP virtual server > >>> on Exchange 2003, > >>> I make Port Forwarding from public IP to local from port 25 to 25 , > >>> when use telnet from Internet to SMTP server, i get message with > >>> code 220 (connection success) but with ***** ( 220 *************) > >>> and other commands is with message 500 5.3.3 Unrecognized > >>> command.. If I change port forwarding ( for example 255 to 25 ) > >>> everything is OK. > >>> If I change on SMTP virtual server port from 25 on for example to > >>> 255 and make again port forwarding Public IP port 255 to local IP > >>> and port 255 everything is OK. > >>> I try turn off FW and SPI again no working. > >>> And telnet from local network working > >>> Can somebody help me? > >> > >> Do you have a Cisco PIX? turn off MailGuard. > > > >
pietro wrote: > Yes, I think so. > Because if I change public port to other and local leave the same > (255 to 25 ) > telnet working fine. > And within my network is it without problem. > So I mean that my FW testing protokol SMTP and changing data > stream and than Exchange can not read the packets > Many Thanks > > Petr Something's funky in your firewall/router, I'd say. > > > > > "Lanwench [MVP - Exchange]" wrote: > >> pietro wrote: >>> NO SMC Barricade Wirreles Broadband router >> >> Odd, because the (***** ( 220 *************) looks awfully Pix-ish. >> The problem has to be something in your router or an upstream one. >> If you telnet on port 25 within your LAN I'll bet you don't have >> these problems, right? >> >> I wouldn't change ports on the vsmtp server (or anything else) unless >> absolutely necessary. >> >>> >>> "Lanwench [MVP - Exchange]" wrote: >>> >>>> pietro wrote: >>>>> Hi, I have problem with inbound connection on SMTP virtual server >>>>> on Exchange 2003, >>>>> I make Port Forwarding from public IP to local from port 25 to 25 >>>>> , when use telnet from Internet to SMTP server, i get message with >>>>> code 220 (connection success) but with ***** ( 220 *************) >>>>> and other commands is with message 500 5.3.3 Unrecognized >>>>> command.. If I change port forwarding ( for example 255 to 25 ) >>>>> everything is OK. >>>>> If I change on SMTP virtual server port from 25 on for example >>>>> to 255 and make again port forwarding Public IP port 255 to local >>>>> IP and port 255 everything is OK. >>>>> I try turn off FW and SPI again no working. >>>>> And telnet from local network working >>>>> Can somebody help me? >>>> >>>> Do you have a Cisco PIX? turn off MailGuard.
