Eh, I forgot: >locale LANG=cs_CZ.IBM-852 LC_CTYPE="cs_CZ.IBM-852" LC_COLLATE="cs_CZ.IBM-852" LC_MONETARY="cs_CZ.IBM-852" LC_NUMERIC="cs_CZ.IBM-852" LC_TIME="cs_CZ.IBM-852" LC_MESSAGES="cs_CZ.IBM-852" LC_ALL=cs_CZ.IBM-852 Mutt complains during startup ... Error in .muttrc, line 302: Warning: Bad IDN 'mutt.org' in alias 'mu tt-dev' ... when set charset="IBM852" in .muttrc - as it worked in 10.20 ux and mutt 1.4.2.1i. Michal