I think the problem is that you are publishing your mail server. A published server must be a secure NAT client. If you don't want exchange to be a Secure NAT client, then I would publish an IIS SMTP relay as the secure NAT client and have that server relay to exchange. "Sabeer Ahamed" <sabeer_isa@xxxxxxxxxxx> wrote: >http://www.ISAserver.org > > > > > >Hi > >I have successfuly published my mailserver >And also successfully published my OWA > >I am able to browse the OWA from outside > >I am able to configure POP3 and IMAP mails of my internal mail server from >outside > >There are no problem in this > >My problem is I am not able to send and recieve mails in either case that >while using OWA and outlook client > >But when i DO NOT configure my internal mail server as a Secure NAT client I >am able to send mails outside but I am not able to recieve the mails > >And agian if I configure my mail server as Secure NAT client I am not able >to send and recieve mails outside > >I did everthing correct,I also gave the smart host entry in my internal mail >server to external DNS server > >But I do not not where I went wrong >I am not able to send and recieve mails > >What futher configurations should I do to send and recieve mails > >Can anyone please guide me in this > >Thanks and Regards >Sabeer > > >_________________________________________________________________ >The new MSN 8: advanced junk mail protection and 2 months FREE* >http://join.msn.com/?page=features/junkmail > > >------------------------------------------------------ >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 >------------------------------------------------------ >Exchange Server Resource Site: http://www.msexchange.org/ >Windows Security Resource Site: http://www.windowsecurity.com/ >Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com >------------------------------------------------------ >You are currently subscribed to this ISAserver.org Discussion List as: >peterjpape@xxxxxx >To unsubscribe send a blank email to $subst('Email.Unsub') >