centericq
In centericq 4.9.10 german umlauts don’t work for many people, also my box had problems. Now I could figure out (with a hint of Marc Thoben – thx!) the problem. Have a look at my mail to the centericq-mailinglist. Short version: don’t use POSIX for LC/locale-settings but use something like that:
[mika@grml: ~]% locale LANG=de_AT@euro LC_CTYPE=de_AT LC_NUMERIC="de_AT@euro" LC_TIME="de_AT@euro" LC_COLLATE="de_AT@euro" LC_MONETARY="de_AT@euro" LC_MESSAGES=en_US LC_PAPER="de_AT@euro" LC_NAME="de_AT@euro" LC_ADDRESS="de_AT@euro" LC_TELEPHONE="de_AT@euro" LC_MEASUREMENT="de_AT@euro" LC_IDENTIFICATION="de_AT@euro" LC_ALL= [mika@grml: ~]%