Version: (using KDE KDE 3.2.0) Installed from: Compiled From Sources OS: Linux Letter source font is unconfigurable. Russian text is not shown in source of plain text letter. In main window or letter window text is shown all right.
It seems to use the KDE wide standard font. Can you confirm that?
> It seems to use the KDE wide standard font. Can you confirm that? Yes, but I use Unicode Arial and KOI8-R codepage by default. But there is russian text in source is shown not in default codepage, but as ISO-8859-1. You can fix this problem, simple use dagault system-wide charset and add feature for easy change codepage of the letter (as KMail main menu charset choosing).
Still reproducible. KMail's message source window presumably uses ascii encoding (just taking a guess). I think that's by policy as mime messages can contain any different kinds of encodings (and mix them).
Thank you for taking the time to file a bug report. KMail2 was released in 2011, and the entire code base went through significant changes. We are currently in the process of porting to Qt5 and KF5. It is unlikely that these bugs are still valid in KMail2. We welcome you to try out KMail 2 with the KDE 4.14 release and give your feedback.