Public bug reported:

Ubuntu 12.04.4 LTS, 64-bit
postgrey 1.34-1

postgrey regulary starts to reject all emails with action "greylisted".
I checked log files and I see these strange messages there:

Mar  6 02:11:39 mda postgrey[1086]: cleaning up old logs...
Mar  6 02:11:40 mda postgrey[1086]: cleaning up old entries...
Mar  6 02:11:40 mda postgrey[1086]: WARNING: Argument 
"1391011722M-^W\0^A62.97.141.71/owner-nolist-mdirector-no..." isn't numeric in 
subtraction (-) at /usr/sbin/postgrey line 267.#012
...
...
Mar  6 03:11:39 mda postgrey[1086]: cleaning up old logs...
Mar  6 03:11:39 mda postgrey[1086]: WARNING: can't checkpoint !? PANIC: fatal 
region error detected; run recovery at /usr/sbin/postgrey line 237.#012

This is critical bug from my point of view, it is kind of DOS attack
because once this problem is triggered, all emails are rejected.

** Affects: postgrey (Ubuntu)
     Importance: Undecided
         Status: New

** Summary changed:

- postgrey rejects all email
+ postgrey rejects all emails

** Description changed:

  Ubuntu 12.04.4 LTS, 64-bit
  postgrey 1.34-1
  
- postgrey regulary starts to reject all email with action "greylisted". I
- checked log files and I see these strange messages there:
+ postgrey regulary starts to reject all emails with action "greylisted".
+ I checked log files and I see these strange messages there:
  
  Mar  6 02:11:39 mda postgrey[1086]: cleaning up old logs...
  Mar  6 02:11:40 mda postgrey[1086]: cleaning up old entries...
  Mar  6 02:11:40 mda postgrey[1086]: WARNING: Argument 
"1391011722M-^W\0^A62.97.141.71/owner-nolist-mdirector-no..." isn't numeric in 
subtraction (-) at /usr/sbin/postgrey line 267.#012
  ...
  ...
  Mar  6 03:11:39 mda postgrey[1086]: cleaning up old logs...
  Mar  6 03:11:39 mda postgrey[1086]: WARNING: can't checkpoint !? PANIC: fatal 
region error detected; run recovery at /usr/sbin/postgrey line 237.#012
  
- 
- This is critical bug from my point of view, it is kind of DOS attack because 
once this problem is triggered, all emails are rejected.
+ This is critical bug from my point of view, it is kind of DOS attack
+ because once this problem is triggered, all emails are rejected.

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https://bugs.launchpad.net/bugs/1289389

Title:
  postgrey rejects all emails

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