You may want to take a look at Xwall by DataEnter (http://www.dataenter.co.at/products/xwall.htm) It supports user validation with a text file of via LDAP, greylisting, RBL / SBS/ SURBL, Bayes, SPF, CCS, Sender ID to name a few. We purchased the product for greylisting and it reduced our mail volume by 80%. The product claims that it is for exchange, but works fine with SMTP Service included with Windows.
FYI: We host very few email accounts, we are prodominately providing a service that office spam and virus filtering. David -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Markus Gufler Sent: Sunday, December 04, 2005 9:36 AM To: [email protected] Subject: RE: Re[2]: [Declude.JunkMail] ANN: Availability of 5xxSink 0.5.00, IIS SMTP event sink for text-file recipient validation This seems a great thing. It should also allow me to run gatewaying services to a restricted number of recipients, or in other words: offer relaying packages for 10, 20, 30, ... users. How much users are realistic vor 5xxSink? Markus --- [This E-mail was scanned for viruses by Declude EVA www.declude.com] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com. --- [This E-mail was scanned for viruses by Declude EVA www.declude.com] --- This E-mail came from the Declude.JunkMail mailing list. To unsubscribe, just send an E-mail to [EMAIL PROTECTED], and type "unsubscribe Declude.JunkMail". The archives can be found at http://www.mail-archive.com.
