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I have a global sieve rule in place to filter mailing-lists. This has worked well so far. Recently however one subscriber on a list seems to create strange character set encodings in the 'From' and 'To' headers. This leads to unprocessed/unfiltered mails (no errors thrown). Is this a configuration or Pigeonhole issue (latest HG used)?
Headers from failing mail:
From: "=?UTF-8?B?VG9yaW50aGllbA==?=" user@domain.tld To: "=?UTF-8?B?ImJpbmQtdXNlcnNAbGlzdHMuaXNjLm9yZyI=?=" bind-users@lists.isc.org
Relevant sieve rule:
if allof (address :is ["To","CC"] ["bind-users@lists.isc.org","bind-users@isc.org","comp-protocols-dns-bind@isc.org"], header :contains "List-Id" "bind-users.lists.isc.org") { fileinto "Public/Mailing-Lists/Bind-Users"; }
Regards Thomas
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