Dan Sorry responded to the wrong email.
Red Hat 7.3, not sure what my brain was thinking, I have Red Hat 7.2-9.0 installations. Anyway back to my question. I am using the concept of POP before SMTP, most commonly implemented via DRACD (or the Drac Daemon). To prevent open relays and to allow mobile clients to login from anywhere in the world and collect there mail and be able to send it back out again. If you are not familiar with the problem see the following synopsis (if you know about it please ignore, or flame me for spelling either way :) Goal: Prevent Open Relay Spam from using my SMTP server, and allow people to login from anywhere to collect and send mail. Nature of Problem: If you lock down SendMail SMTP to prevent open relaying you block all relaying. Then you have to create a "Whitelist" of IP's and/or Domains that can "relay" through you. Well that causes a problem if your clients are scattered to the winds using all sorts of ISP's and other ways of connecting to the internet. I have to open up all those ISP's domains so that my clients can use my SMTP server. When I do that then, anybody on those ISP's can use my SMTP server to do their bidding, hence I become an open relay and a spammers delight. I can't used authenticated SMTP, since not all email clients use it. Although maybe I need to force them now, probably all clients are supporting it by now not sure. So I use POP before SMTP, when the client logs in to collect email (POP3) they use a login name and password, the DRACD popper then creates a dbm hash table with that IP address in it and will keep it in the dbm style hash table for 30 minutes (or some configurable amount). So then SMTP server gets a request for a relay, it then checks the hash table for that IP, if it is in the table, he can sendmail, otherwise disconnect. It works great and solves so many problems for me. I use SendMail with DRACD rules and qpopper with DRACD support, and of course DRACD. So with TMDA I need to be able to do something similar. Can I do this with TMDA? Thanx Julian > -----Original Message----- > From: Dan Egli [mailto:[EMAIL PROTECTED] > Sent: Saturday, July 12, 2003 10:33 AM > To: Julian Brown > Subject: Re: DRACD > > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Julian Brown wrote: > > | I have a setup with RedHat 7.9, using Sendmail with Dracd (i.e. POP > before SMTP) and qpopper server with DracD support. > | > | I know they mentioned some other popper in the FAQ, I was wondering > has anyone else put this together with a DRAC or POP before SMTP > mechanism? > | > | Thanx > | > | Julian > > > RedHat 7.9? Never heard of that one. As far as I knew, it went RedHat > 7.3, 8.0, 9. Or do you mean Limbo, the 8.0 beta? If it's a beta, why > don't you upgrade to a sollid release? > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.2.2 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iD8DBQE/ECo0xQEzeXtVwzoRAmS6AKCdtVKhGDwF2tbsTcb71MxYNM8tFQCfSjLj > YSM/4Ft+cPRQJFrDA+CeXyY= > =Kj0F > -----END PGP SIGNATURE----- > > > > _____________________________________________ tmda-users mailing list ([EMAIL PROTECTED]) http://tmda.net/lists/listinfo/tmda-users
