Module: Sisimai::Reason::SpamDetected

Defined in:
lib/sisimai/reason/spamdetected.rb

Overview

Sisimai::Reason::SpamDetected checks the bounce reason is “spamdetected” due to Spam content in the message or not. This class is called only Sisimai::Reason class. This is the error that the message you sent was rejected by “spam filter” which is running on the remote host.

Action: failed
Status: 5.7.1
Diagnostic-Code: smtp; 550 5.7.1 Message content rejected, UBE, id=00000-00-000
Last-Attempt-Date: Thu, 9 Apr 2008 23:34:45 +0900 (JST)

Constant Summary collapse

Index = 
[
  "blacklisted url in message",
  "block for spam",
  "blocked by policy: no spam please",
  "blocked by spamassassin", # rejected by SpamAssassin
  "classified as spam and is rejected",
  "content filter rejection",
  "denied due to spam list",
  "identified spam", # 554 SpamBouncer identified SPAM, message permanently rejected (#5.3.0)
  "may consider spam",
  "message content rejected",
  "message has been temporarily blocked by our filter",
  "message is being rejected as it seems to be a spam",
  "message was rejected by recurrent pattern detection system",
  "our email server thinks this email is spam",
  "reject bulk.advertising",
  "spam check",
  "spam content ",
  "spam detected",
  "spam email",
  "spam-like header",
  "spam message",
  "spam not accepted",
  "spam refused",
  "spamming not allowed",
  "unsolicited ",
  "your email breaches local uribl policy",
].freeze
Pairs = 
[
  ["accept", " spam"],
  ["appears", " to ", "spam"],
  ["bulk", "mail"],
  ["considered", " spam"],
  ["contain", " spam"],
  ["detected", " spam"],
  ["greylisted", " please try again in"],
  ["mail score (", " over "],
  ["mail rejete. mail rejected. ", "506"],
  ["message ", "as spam"],
  ["message ", "like spam"],
  ["message ", "spamprofiler"],
  ["probab", " spam"],
  ["refused by", " spamprofiler"],
  ["reject", " content"],
  ["reject, id=", "spam"],
  ["rejected by ", " (spam)"],
  ["rejected due to spam ", "classification"],
  ["rule imposed as ", " is blacklisted on"],
  ["score", "spam"],
  ["spam ", "block"],
  ["spam ", "filter"],
  ["spam ", " exceeded"],
  ["spam ", "score"],
].freeze

Class Method Summary collapse

Class Method Details

.description ⇒ Object 



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# File 'lib/sisimai/reason/spamdetected.rb', line 69

def description; return 'Email rejected by spam filter running on the remote host'; end

.match(argv1) ⇒ Boolean

Try to match that the given text and regular expressions

Parameters:

  • argv1 (String) —

    String to be matched with regular expressions

Returns:

  • (Boolean) —

    false: Did not match, true: Matched



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# File 'lib/sisimai/reason/spamdetected.rb', line 74

def match(argv1)
  return false if argv1.nil? || argv1.empty?
  return true  if Index.any? { |a| argv1.include?(a) }
  return true  if Pairs.any? { |a| Sisimai::String.aligned(argv1, a) }
  return false
end

.text ⇒ Object 



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# File 'lib/sisimai/reason/spamdetected.rb', line 68

def text; return 'spamdetected'; end

.true(argvs) ⇒ Boolean

Rejected due to spam content in the message

Parameters:

Returns:

  • (Boolean) —

    true: rejected due to spam false: is not rejected due to spam

See Also:



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# File 'lib/sisimai/reason/spamdetected.rb', line 86

def true(argvs)
  return false if argvs['deliverystatus'].empty?
  return true  if argvs['reason'] == 'spamdetected'
  return true  if Sisimai::SMTP::Status.name(argvs['deliverystatus']) == 'spamdetected'

  # The value of "reason" isn't "spamdetected" when the value of "command" is an SMTP command
  # to be sent before the SMTP DATA command because all the MTAs read the headers and the
  # entire message body after the DATA command.
  return false if Sisimai::SMTP::Command::ExceptDATA.include?(argvs['command'])
  return match(argvs['diagnosticcode'].downcase)
end