>Though I trust Len and Sandy regarding the present condition where no >firewall SMTP proxies support ESMTP, is it not conceivable that a proxy >*could* be made to have access to the user+password file?
sure > Am I missing some >obvious impediment which would explain why SMTP proxies cannot obtain access >to the user+password data for fundamental reasons? The problem is the which database interface? from the firewall program to the authentication database of users+passwords. Mail servers use all kinds of users databases, mostly proprietary, as with Imail. To avoid the proprietary aspect and to support various OS's used by mailservers, a firewall program could specify an "secure" LDAP server. ie, it's really very complicated, in general, for a firewall to support user+passwords for SMTP AUTH. The best approach would be via some RFC standard directory service like LDAP. But IMail's case LDAP server can't be used securely for authentication to external LDAP clients like a firewall. Len __________________________________________________________________ www.menandmice.com/DNS-training : DNS Training BIND8NT.MEIway.com : ISC BIND for NT4 & W2K IMGate.MEIway.com : Build free, hi-perf, anti-abuse mail gateways Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. An Archive of this list is available at: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Please visit the Knowledge Base for answers to frequently asked questions: http://www.ipswitch.com/support/IMail/
