Dear let mr brief it for you I have a registered domail for me( mydomain.com) ( pop.mydomain.com for POP3) and (smtp.mydomain.com for SMTP). those servers have not been reigstered with my IPs. later I got wondorful Internet system which I have installed Domain Controller , FTP server and ISA server. the proplem occurrs whenever I am trying to restrict internet Access for certain group then the 'microsoft outlook' always is giving 'pop.mydomain.com server is not found'. When I allow internet Access for all users it works fine. I have tried both cases for the client side ( firewall enabled and without a firewall ). any help will be appriciated indeed. Ammar Jabbar Ted Doholis <tdoholis@xxxxxxxxxxxxx> wrote: v\:* {behavior:url(#default#VML);}o\:* {behavior:url(#default#VML);}w\:* {behavior:url(#default#VML);}.shape {behavior:url(#default#VML);}st1\:*{behavior:url(#default#ieooui) }http://www.ISAserver.org What exactly is the problem? Does it happen when the client is outside the firewall or inside? What authentication method are you using? Ted Doholis SaltSpring Software Inc. --------------------------------- From: Ambrogio Corrado [mailto:corrado.ambrogio@xxxxxxxxxxxxxxx] Sent: Tuesday, May 17, 2005 8:17 AM To: [ISAserver.org Discussion List] Subject: [isalist] R: Re: pop3 and smtp problem http://www.ISAserver.org Firewall Client. ing. Corrado Ambrogio Comune di Cuneo Settore Elaborazione Dati Tel:0171444606 Fax:0171444601 e_mail: corrado.ambrogio@xxxxxxxxxxxxxxx -----Messaggio originale----- Da: William T. Holmes [mailto:wtholmes@xxxxxxxxxxxxxx] Inviato: martedì 17 maggio 2005 13.15 A: [ISAserver.org Discussion List] Oggetto: [isalist] Re: pop3 and smtp problem http://www.ISAserver.org Are you using the firewall client or are your internal hosts Secure NAT Clients? --------------------------------- From: ammar beaati [mailto:ammarjabbar2000@xxxxxxxxx] Sent: Tuesday, May 17, 2005 6:39 AM To: ISAserver.org Discussion List Subject: [isalist] Re: pop3 and smtp problem http://www.ISAserver.org May be I did not make myself clear, dear sir, I know how to cofigure rules to access SMTP and POP3 servers. the proplem is : I have the following rules: 1- Action: Allow protocols: DNS,HTTP,HTTPS,MSN Messenger,POP3,SMTP From : Internal, Local Host To : External Users : All Users I have published the mail server with the following rule 2- Action : Allow Traffic : POP3 Server From : Anywhere To : I have supplied the IP of my POP3 server Network: Internal, Local Host and the same rule has been repeated for the SMTP server. the problem occurs when I make a restricted group but with 'All Users' everything just go fine. I appreciate your co-operation very much. Ammar Jabbar IT Dept. Alex <alex@xxxxxxxxxxxxxxxxxxx> wrote: http://www.ISAserver.org Hi Amaar, You have to create Access rule to allow SMTP & POP3 protocols from internal network to the external network for all users. After configuring this rule, u'll be under way to EMAILING..... !! You have to explicitly configure this rule even though you have created a rule which allows unrestricted access to all protocols in ISA 2004. 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