[Tickets #8054] Invalid MIME encoding in address headers

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Ticket URL: http://bugs.horde.org/ticket/8054
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  Ticket             | 8054
  Created By         | thomas at henlich.de
  Summary            | Invalid MIME encoding in address headers
  Queue              | IMP
  Version            | 4.1.3
  Type               | Bug
  State              | Unconfirmed
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             |
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thomas at henlich.de (2009-03-06 10:22) wrote:

IMP encodes address header incorrectly in some cases. E. g. the address:
Ing. Tomás Hxxxxxx <Thomas.Hxxxxxx at xx-xxxxxxx.de>
is encoded as
"Ing. =?iso-8859-15?b?VG9t4XM=?= Hxxxxxx"
	<Thomas.Hxxxxxx at xx-xxxxxxx.de>

According to RFC 2047:
+ An 'encoded-word' MUST NOT appear within a 'quoted-string'.

This confuses e-mail clients which strictly adhere to this definition,  
e.g. Opera 9.64 and should be fixed in IMP.