Firewall Wizards mailing list archives
Remote Mail Users
From: Greg Taylor <gtaylor () ntyne demon co uk>
Date: Tue, 23 Sep 1997 11:45:35 GMT
Hi, Can I please submit a problem which has had me confused for weeks? I have an internal network of mail users using MS exchange with an exchange server. The SMTP connector of this goes via a Gauntlet firewall to the Internet (or at least will do when we have completed configuration!) I also have a community of remote users who need to send mail by attachments to the main server. The intention (for strong security reasons) is for them to use Smartgate providing encrytion of the link. They will also only be allowed SMTP via the firewall. THE PROBLEM - Exchange server can accept SMTP mail but cannot operate as an SMTP post-office. I DO NOT WANT to open any further ports in the firewall. I have had suggested a POP3 server within the firewall with that connected to the SMTP connector of exchange but that means that any user who could be both on the internal network and who could work from home on a laptop would be a user on two main systems. How do I ensure that whichever system they log in they get the same mail? At the worst case I could accept a system where the mail is sent to both but can this even be improved on? Horrible picture follows: Internet ----> Firewall ----> POP3 server -----> Exchange Server ----> user | Shiva Modem stack | Remote laptop user. The firewall permits only ports 25 and 80. The preference would be to have the remote users also using exchange client set to dialup networking although I beleive(?) exchange is not POP3 compliant. Any ideas please? I am completely stuck over this one! :-( Greg May you live in interesting times. (Ancient Chinese curse) Greg Taylor MBCS, FIAP gtaylor () ntyne demon co uk Open Systems Programme Leader North Tyneside Council
Current thread:
- Remote Mail Users Greg Taylor (Sep 23)
- Re: Remote Mail Users Patrick Belliotti (Sep 24)
- Re: Remote Mail Users Benoit Dicaire (Sep 24)