[imp] Subject line encoding problem

[Otto Stolz]

Hello,

Daniel A. Ramaley schrieb:
> our webmail server [...] runs Horde 3.1.5 and Imp 4.1.5
...
> i sent a message 3 times, each time selecting a different 
> encoding. In both the Subject and the body i typed "日本語" ("Japanese 
> language" in Japanese).
...
> Encoding      Subject line
> -----------   ----------------------------------
...
> ISO-2022-JP   =?UNKNOWN?Q?=1B$BF|K=5C8l=1B=28B?=

This bug must have been introduced between Imp 4.1.3 and 4.1.5
as an attempted fix for an even worse bug: I have tried the
same test with Horde 3.1.3 and Imp H3 (4.1.3), and Imp sent
the string «$BF|K\8l(B» (hex:  1B 24 42 46 7C 4B 5C 38 6C 1B 28 42,
ISO-2022-JP: «日本語»), in the Subject line -- without the
encoded-word markup (according to RFC 2047).

I have configured my Webmail installation to use UTF-8 as its
default encoding, as this causes the least headache.

Best wishes,
   Otto Stolz