Quoting Michael M Slusarz <slus...@horde.org>:

abcd=C3=BC abcd=C3=BC abcd=C3=BC abcd=C3=BC abcd=C3=BC abcd=C3=BC abcd=C3=$
=BC abcd=C3=BC abcd=C3=BC abcd=C3=BC abcd=C3=BC  $
abcd=C3=BC abcd=C3=BC abcd=C3=BC abcd=C3=BC abcd=C3=BC abcd=C3=BC abcd=C3=$
=BC abcd=C3=BC abcd=C3=BC abcd=C3=BC abcd=C3=BC abcd=C3=BC$

Looking at this... unfortunately it does look like we are incorrectly generating the quoted-printable data. To preserve whitespace at the end of a line, it must be followed by a "soft line break" - a bare "=". This isn't happening here. It looks like the quoted-printable decoder used by Cyrus (I can also confirm the same behavior on Dovecot 2.2) is much stricter about the format than our encoder.

We are using PHP's built-in quoted-printable stream encoder to produce this output so this (unfortunately) might be an issue outside of the realm of Horde/IMP. I will need to investigate further.

...and it is a PHP bug.

https://bugs.php.net/bug.php?id=64166

michael

___________________________________
Michael Slusarz [slus...@horde.org]

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