Qmail Engineered

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This is a distribution based on Qmail but not covered by Dan Bernstien's guarantee. The code and features added to this version is based on using software engineering methods to optimize performance on business and ISP class email servers.


  • optional reverse dns existance check for MTAs (not for customer MUA)
  • optional Windows Greylisting for MTAs
  • mail to: validation (check user)
  • clamAV Anti Virsus scanning for all email via simscan
  • DSpam (learning based) spam content filtering via simscan for MTAs
  • mysql backend that scales to clusters
  • cluster scalable
  • smtp TLS (encryption over standard smtp port 25)
  • SSL support for pop3, smtp and imap services on standard ssl ports
  • SquirrelMail webmail with Calendar support and custom skin
  • Calendar Server
  • Historical Email Traffic Graphs
  • optional volume traffic blocker using tcpblocker
  • start up using standard init scripts instead of svscan
  • recommended resierfs filesystem for email data store
  • TroubleShooting
  • Dust Bunny removal (removal of old unused accounts collecting email)
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