The E2k 2nd nic is necessary purely to bypass ISA when internet clients are trying to pop3 to the E2k server. (work around) ISA doesn't use this interface. Is 10060 authentication denied on the ISA or Exchange. Clients can pop3 the E2k server when not going thru ISA??? Therefore, is there somewhere in ISA re: authentication methods for POP3 to E2k??? that may be different to the way internet clients connect. E2k POP3 is config'd for Plain Text auth currently. Kent Goldfinch Information Technology Engineer Infinity Solutions 113-119 The Terrace Wellington NZ 04 471 5600 021 342 554 04 472 6796 kent.goldfinch@xxxxxxxxxxxxxx <mailto:kent.goldfinch@xxxxxxxxxxxxxx> -----Original Message----- From: Jim Harrison [mailto:jim@xxxxxxxxxxxx] Sent: Thursday, 7 March 2002 3:41 a.m. To: [ISAserver.org Discussion List] Subject: [isalist] Re: Unable to POP3 to internal E2k Server via ISA from external client http://www.ISAserver.org Now you're mixing your network tenses. If you telnet to the ISA server, the ISA will log that connection attempt. Also, if you connect to the ISA, the E2K server won't see the connection on its new external NIC. Put the E2K server back on the single NIC. Leave it behind the ISA. Troubleshoot one thing at a time. Check your Exchange setup; 10060 is: Event ID 10060 Event Message Permission denied. The remote server refused access to the requested resource. Contact the administrator for the remote server and report the problem. Jim Harrison MCP(NT4, W2K), A+, Network+, PCG http://isaserver.org/authors/harrison/ Read the books! ----- Original Message ----- From: "Kent G" <kent.goldfinch@xxxxxxxxxxxxxx> To: "[ISAserver.org Discussion List]" <isalist@xxxxxxxxxxxxx> Sent: Tuesday, March 05, 2002 13:12 Subject: [isalist] Re: Unable to POP3 to internal E2k Server via ISA from external client http://www.ISAserver.org I have now tested from a simple pc on the network between isa server and adsl with the exact same result... telnet Isa ext IP, screen goes blank then says connection lost. Those log entries I e-maled to you appear to be the attempts. NB. Interesting thing. The E2k server now has 2nd nic in the 172.x network (isa ext network) and ADSL router has 110 directed to the E2k server. ISa appears to be logging the traffic from the ADSL to E2k server??? Does Isa packet sniff or log all traffic that passes on its network?? ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: jim@xxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: kent.goldfinch@xxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') The information contained in this email is privileged and confidential and intended for the addressee only. If you are not the intended recipient, you are asked to respect that confidentiality and not disclose, copy or make use of its contents. If received in error you are asked to destroy this email and contact the sender immediately. Your assistance is appreciated.