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[Robert Lyon <robertl@xxxxxxxxxxxxxxx>]

** Changed in: mahara
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1261233

Title:
  Allow a VERP "bounces_ratio" of 0

Status in Mahara ePortfolio:
  Fix Released

Bug description:
  Our VERP bounce system has two parameters to determine when to disable
  someone's email. The absolute number of bounces must be greater than
  "bounces_min", and the ratio of bounces received versus emails sent,
  must be greater than "bounces_ratio".

  The problem is, on mahara.org we have some email addresses that have
  received thousands of emails, and others that have received less than
  a dozen. This makes the bounces_ratio feature not that useful; if we
  set it something like the default 0.2, then an email address that has
  been registered for years but has recently become invalid, will have
  to send us hundreds of bounce messages before we disable it.

  So, I want to disable the bouncesratio feature, by setting it to 0 (so
  that no matter what the ratio of sent to bounced is, it'll be higher
  than 0). However, check_overcount() short-circuits if *either*
  bounces_min or bounces_ratio is false, so I can't use 0 because it
  evaluates to false.

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