Hi All, I hope that this link explains the SMTP commands for you. http://www.nthelp.com/smtp_commands.htm Joseph -----Original Message----- From: John Tolmachoff (Lists) [mailto:johnlist@xxxxxxxxxxxxxxxxxxx] Sent: Friday, August 27, 2004 9:43 AM To: [ISAserver.org Discussion List] Subject: [isalist] Re: Noop http://www.ISAserver.org I have no idea what NOOP is, but I have involved in e-mail and there are no problems with ISA server and normal SMTP communications. Since there are thousands of ISA installations (I think) and since this problem has not come up on here before, and since they are asking for a 170 times increase in the size (17,000%) that raises a red flag for me. I would dig more into what domains are having the problem, and what kind of software they are running that is causing that issue. John Tolmachoff Engineer/Consultant/Owner eServices For You > -----Original Message----- > From: Clarke, Scott [mailto:Scott.Clarke@xxxxxxxxxxxx] > Sent: Friday, August 27, 2004 9:18 AM > To: [ISAserver.org Discussion List] > Subject: [isalist] Re: Noop > > http://www.ISAserver.org > > According to the IT people trying to email me...that say they see it before. > > -----Original Message----- > From: Jim Harrison [mailto:jim@xxxxxxxxxxxx] > Sent: Friday, August 27, 2004 1:45 PM > To: [ISAserver.org Discussion List] > Subject: [isalist] Re: Noop > > > http://www.ISAserver.org > > Do you know for a fact that this is the issue? > > > Jim Harrison > MCP(NT4, W2K), A+, Network+, PCG > http://isaserver.org/Jim_Harrison/ > http://isatools.org > Read the help / books / articles! > > ----- Original Message ----- > From: <scott.clarke@xxxxxxxxxxxx> > To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx> > Sent: Friday, August 27, 2004 08:48 > Subject: [isalist] Noop > > > http://www.ISAserver.org > > Some businesses cannot email to our domain. Are there any security > issues the I should know about before increasing NOOP size in ISA > Server SMTP filter to 1024 bytes instead of default 6 bytes > > ------------------------------------------------------ > List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist > ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp > ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ > ------------------------------------------------------ > Other Internet Software Marketing Sites: > World of Windows Networking: http://www.windowsnetworking.com Leading > Network Software Directory: http://www.serverfiles.com No.1 Exchange > Server Resource Site: http://www.msexchange.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 > ------------------------------------------------------ > You are currently subscribed to this ISAserver.org Discussion List as: jim@xxxxxxxxxxxx > To unsubscribe visit > http://www.webelists.com/cgi/lyris.pl?enter=isalist > Report abuse to listadmin@xxxxxxxxxxxxx > > > ------------------------------------------------------ > List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist > ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp > ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ > ------------------------------------------------------ > Other Internet Software Marketing Sites: > World of Windows Networking: http://www.windowsnetworking.com Leading > Network Software Directory: http://www.serverfiles.com No.1 Exchange > Server Resource Site: http://www.msexchange.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 > ------------------------------------------------------ > You are currently subscribed to this ISAserver.org Discussion List as: > scott.clarke@xxxxxxxxxxxx To unsubscribe visit > http://www.webelists.com/cgi/lyris.pl?enter=isalist > Report abuse to listadmin@xxxxxxxxxxxxx > > ------------------------------------------------------ > List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist > ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp > ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ > ------------------------------------------------------ > Other Internet Software Marketing Sites: > World of Windows Networking: http://www.windowsnetworking.com Leading > Network Software Directory: http://www.serverfiles.com No.1 Exchange > Server Resource Site: http://www.msexchange.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 > ------------------------------------------------------ > You are currently subscribed to this ISAserver.org Discussion List as: > johnlist@xxxxxxxxxxxxxxxxxxx To unsubscribe visit > http://www.webelists.com/cgi/lyris.pl?enter=isalist > Report abuse to listadmin@xxxxxxxxxxxxx ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: World of Windows Networking: http://www.windowsnetworking.com Leading Network Software Directory: http://www.serverfiles.com No.1 Exchange Server Resource Site: http://www.msexchange.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 ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: josephk@xxxxxxxxxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=isalist Report abuse to listadmin@xxxxxxxxxxxxx