Chapter 2: How InterWorx Implements Email Up Main page Chapter 4: Configuring Mail Transfer Agent 

3 Quick Start

Quickly getting up and running with InterWorx’s email server is very easy to do - It eimply entails visiting the service configuration pages of each major service, turning it on, and then “checking in” at the queue to make sure everything’s up and running. If you want to do so, each service can also be set to run at system boot.

3.1 Setting up qmail MTA

  1. Go to NodeWorx’s System Services  ▷ Mail Server  ▷  MTA menu.
  2. Make sure that everything is green and running.
  3. Set your maximum message size in the ’MTA SMTP Options (inbound)’ box.[F][F]The reason to limit this is mainly if disk space or processor capacity is at a premium.
  4. Optionally, set the services to run at boot.

3.2 Setting up qmail-pop3d and courier-imap MDAs

  1. Go to NodeWorx’s System Services  ▷  Mail Server  ▷  MDA menu.
  2. Ensure that all four Server Control status boxes are showing green and running.
  3. Optionally, set the services to run at boot.
  4. Save your changes.

3.3 Spam Filtering

  1. Go to NodeWorx’s System Services  ▷  Mail Server ▷  Spam Filtering section.
  2. Make sure that SpamAssassin is running.
  3. In the SpamAssassin Options area, set SMTP-Level Scanning to Enabled.[G][G]SMTP-Level Scanning will scan all e-mail using the SpamAssassin content filter as the e-mail enters the server. The SMTP connection will be dropped only if the Spam Score is higher than the SMTP Spam Score option below. Otherwise, the e-mail will still be delivered to the recipient.
  4. Spam Score Threshold to 5.[H][H]Lower values here are stricter. If you’re worried about blocking legitimate mail, try 7. If even 5 lets in too much spam, drop it to 4.
  5. Reporting Method should be “Attach Original.”
  6. In Bayesian Scanning, enable everything except Global Bayesian Scanning.
  7. Set the IMAP Learning Limit to 50.[I][I]The IMAP Leaning Limit sets a cap on how many e-mails users can submit to the Bayes engine in SpamAssassin for training as junk (spam) or not-junk (ham).

3.4 Virus Filtering

  1. Go to NodeWorx’s System Services  ▷  Mail Server  ▷ Virus Filtering section.
  2. Make sure that both ClamAV (the virus filter itself) and Freshclam (the filter’s known-signature list updater) are Running.
  3. Optionally, sset both to start on boot.
  4. Optionally set ClamAV to automatically restart if it fails.
  5. Optionally, enable SMTP-Level Virus Scanning.[J][J]Important note: if SMTP-Level Virus Scanning is enabled and the virus scanner stops running for some reason, e-mail will not be delivered.

3.5 Final Check

  1. Go to NodeWorx’s System Services  ▷  Mail Server  ▷  Mail Queue section.
  2. Make sure that the Local, Remote, and Todo queues are clear.
 Chapter 2: How InterWorx Implements Email Up Main page Chapter 4: Configuring Mail Transfer Agent 

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