[Tickets #4854] Cannot filter spam if from address has illegal apostrophe (')

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Ticket URL: http://bugs.horde.org/ticket/?id=4854
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 Ticket             | 4854
 Created By         | robert at biro.net
 Summary            | Cannot filter spam if from address has illegal apostrophe (')
 Queue              | Ingo
 Version            | 1.1.1
 Type               | Bug
 State              | Unconfirmed
 Priority           | 2. Medium
 Owners             | 
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robert at biro.net (2007-01-08 16:14) wrote:

Spam is coming in with illegal from addresses that have an apostrophe in it
and cannot be filtered by Horde.
The address is added to the banned list, but it never gets filtered.

Example addresses from my horde blacklist:
verve'sdistributors at aaconline.com
terrapin'sshepherd at aandacht.com
latexbaha'i at aardse.nl

Horde info:
Horde Version

    * Horde: 3.1.3

Horde Applications

    * Horde: 3.1.3
    * Imp: H3 (4.1.3) (run Imp tests)
    * Ingo: H3 (1.1.1) (run Ingo tests)
    * Jonah: 0.1-cvs (run Jonah tests)
    * Kronolith: H3 (2.1.2)
    * Mnemo: H3 (2.1)
    * Nag: H3 (2.1.1)
    * Turba: H3 (2.1.2) (run Turba tests)

PHP Version

    * View phpinfo() screen
    * View loaded extensions
    * PHP Version: 4.4.2
    * PHP Major Version: 4.4
    * PHP Minor Version: 2
    * PHP Version Classification: release
    * You are running a supported version of PHP.