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The Lounge What is on Your Mind? Purge of Inactive Users with Zero Posts and Other Anti-spam Measures Post 303023528 by Neo on Tuesday 18th of September 2018 11:10:25 PM
Old 09-19-2018
Purge of Inactive Users with Zero Posts and Other Anti-spam Measures

In order to keep the site "clean, safe and warm", I have recently purged all accounts at UNIX.COM which meet the ALL of the following 3 criteria:
  • No user activity in 2018
  • No posts (zero post count)
  • Link in user profile.

In addition, I purged all users who registered but never confirmed their email address.

Also, instead of relying on flawed or inaccurate anti-spam databases or spam classifiers, I am manually inspecting new users in our database and we will actively delete users who are obviously registering on the site only to spam and/or post links to spammy sites.

The reason for this change is that anti-spam databases and anti-spam classifiers sometime block legitimate new users. We do not want any legitimate user with a UNIX/Linux problem (and an emergency need to be solve or helped) to be blocked. "AI' methods (Bayesian classifiers, ANN (artificial neural networks), etc ) are not really 100% reliable for blocking users and spam, and I don't want UNIX.COM to be dominated by "Bad AI" or "AI Gone Mad", so we are going to manage this directly in our database and will delete all new registered users who are obviously spammers.

UNIX.COM is fighting back against "bad AI' and so we will use humans, not machines, to manage user registration and spam until further notice.

Thank you as always for being a UNIX.COM team member.

Resist Bad AI (RBAI)
This User Gave Thanks to Neo For This Post:
 

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Mail::SpamAssassin::PerMsgStatus(3)			User Contributed Perl Documentation		       Mail::SpamAssassin::PerMsgStatus(3)

NAME
Mail::SpamAssassin::PerMsgStatus - per-message status (spam or not-spam) SYNOPSIS
my $spamtest = new Mail::SpamAssassin ({ 'rules_filename' => '/etc/spamassassin.rules', 'userprefs_filename' => $ENV{HOME}.'/.spamassassin.cf' }); my $mail = Mail::SpamAssassin::NoMailAudit->new(); my $status = $spamtest->check ($mail); if ($status->is_spam()) { $status->rewrite_mail (); $mail->accept("caught_spam"); } ... DESCRIPTION
The Mail::SpamAssassin "check()" method returns an object of this class. This object encapsulates all the per-message state. METHODS
$isspam = $status->is_spam () After a mail message has been checked, this method can be called. It will return 1 for mail determined likely to be spam, 0 if it does not seem spam-like. $list = $status->get_names_of_tests_hit () After a mail message has been checked, this method can be called. It will return a comma-separated string, listing all the symbolic test names of the tests which were trigged by the mail. $num = $status->get_hits () After a mail message has been checked, this method can be called. It will return the number of hits this message incurred. $num = $status->get_required_hits () After a mail message has been checked, this method can be called. It will return the number of hits required for a mail to be consid- ered spam. $report = $status->get_report () Deliver a "spam report" on the checked mail message. This contains details of how many spam detection rules it triggered. The report is returned as a multi-line string, with the lines separated by " " characters. $status->rewrite_mail () Rewrite the mail message. This will add headers, and possibly body text, to reflect its spam or not-spam status. The modifications made are as follows: Subject: header for spam mails The string "*****SPAM*****" (changeable with "subject_tag" config option) is prepended to the subject, unless the "rewrite_subject 0" configuration option is given. X-Spam-Status: header for spam mails A string, "Yes, hits=nn required=nn tests=..." is set in this header to reflect the filter status. The keys in this string are as follows: X-Spam-Report: header for spam mails The SpamAssassin report is added to the mail header if the "report_header 1" configuration option is given. hits=nn The number of hits the message triggered. required=nn The threshold at which a mail is marked as spam. tests=... The symbolic names of tests which were triggered. X-Spam-Flag: header for spam mails Set to "YES". Content-Type: header for spam mails Set to "text/plain", in order to defang HTML mail or other active content that could "call back" to the spammer. X-Spam-Checker-Version: header for spam mails Set to the version number of the SpamAssassin checker which tested the mail. spam mail body text The SpamAssassin report is added to top of the mail message body, unless the "report_header 1" configuration option is given. X-Spam-Status: header for non-spam mails A string, "No, hits=nn required=nn tests=..." is set in this header to reflect the filter status. The keys in this string are the same as for spam mails (see above). $messagestring = $status->get_full_message_as_text () Returns the mail message as a string, including headers and raw body text. If the message has been rewritten using "rewrite_mail()", these changes will be reflected in the string. Note: this is simply a helper method which calls methods on the mail message object. It is provided because Mail::Audit uses an unusual (ie. not quite intuitive) interface to do this, and it has been a common stumbling block for authors of scripts which use Spa- mAssassin. $status->finish () Indicate that this $status object is finished with, and can be destroyed. If you are using SpamAssassin in a persistent environment, or checking many mail messages from one Mail::SpamAssassin factory, this method should be called to ensure Perl's garbage collection will clean up old status objects. SEE ALSO
"Mail::SpamAssassin" "spamassassin" perl v5.8.0 2002-09-26 Mail::SpamAssassin::PerMsgStatus(3)
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