current random information

  • smtp handler is postfix
  • email authentication includes milters for spf, dkim, dmarc, postsrsd
  • content filtering includes spamassassin, clamav
  • mailing lists handled by mailman 2 and public-inbox

configuration hotspots

  • mailman2 per-list mboxes: /var/lib/mailman/archives/private/FOO.mbox/FOO.mbox

brief recipes

  • designate spam email that leaked into mailing lists:
    # cd /var/lib/mailman/archives/private/LIST.mbox
    # mutt -f LIST.mbox
    (select message, then:) "| sa-learn --spam"
    (to check:) "| spamassassin -dtD 2>&1 | less"
  • nuke mailman archive spam - blunt
    # cd /var/lib/mailman/archives/private/LIST/PERIOD
    # chmod 640 FILE.html  # not 000, leads to /var/log/mailman/error

  • To remove an inbox.sourceware.org message from the html,nntp,imap archives as inbox admin do: 
    $ curl https://inbox.sourceware.org/..../raw | public-inbox-learn spam

    • 




pre-2019 historical information



Random information about sourceware's email setup



    

  • smtp handler is in /service/qpsmtpd
    • 

  • low-level spam handling is spamassassin
    • 

  • most mail infrastructure is qmail
    • 

  • mailing lists are handled by ezmlm-idx
    • 

  • higher-level mailing list handling is accomplished by home-grown /sourceware/infra/mlcheckd
    • 




Common Tasks



    

  • Confirm a user was added to list YYY within lists-XXX mailing lists?

    ezmlm-list /var/qmail/lists-XXX/YYY | grep 'USER'
    • 

  • sitewide blacklist ezmlm-list /qmail/lists/global/deny
    • 

  • sitewide whitelist ezmlm-list /qmail/lists/global/allow
    • 




useful tools



    

  • /home/cgf/bin/qpdump --search='email address regex'

    Dumps information (including spamassassin logs when possible) about any incoming smtp traffice associated with the email address
    • 

  • /home/cgf/bin/satest rule < email

    Shows which patterns matched rule in supplied email
    • 

  • /home/cgf/bin/mldump mldump /var/log/qmail/send/*

    Dumps qmail send logs in a more human readable format.
    • 

  • spamc -R -u GLOBAL -U /var/run/spamd < mail

    Check mail against running spamd, output scores.
    • 

  • Really whitelist an email address:

    mysql A -u -p root

    mysql> update awl set count= 1000000, totscore= -1E7  where email = 'email@address';
    • 

  • Procedure after updating /etc/mail/spamassassin/local.cf:

    spamassassin --lint && service spamassassin restart
    •