It appears the underlying issue is someone has changed Mailman's character set for 'nl' (Dutch) from iso-8859-1 to utf-8. Possibly whoever did this did the appropriate things such as recoding the message catalog and templates to utf-8, but in any case, the strings in the attributes of this list weren't recoded. This is one of the major problems that make it difficult to change Mailman's encoding for a language. See the definitions of the recode(), doitem() and convert() functions in Mailman/versions.py in Mailman 2.1.19 or later.
So basically, this issue appears to be a 'shot oneself in the foot' thing and probably could be fixed by setting the list's description to 'Lijst voor Caljent\xc3\xa9-leden', although I would be concerned that there are other iso-8859-1 strings in list attributes.
Anyway, I see this as an issue worth fixing. The fix I would propose is in Mailman/Handlers/CookHeaders.py replace the line at the end of the definition of uheader which is currently
It appears the underlying issue is someone has changed Mailman's character set for 'nl' (Dutch) from iso-8859-1 to utf-8. Possibly whoever did this did the appropriate things such as recoding the message catalog and templates to utf-8, but in any case, the strings in the attributes of this list weren't recoded. This is one of the major problems that make it difficult to change Mailman's encoding for a language. See the definitions of the recode(), doitem() and convert() functions in Mailman/versions.py in Mailman 2.1.19 or later.
So basically, this issue appears to be a 'shot oneself in the foot' thing and probably could be fixed by setting the list's description to 'Lijst voor Caljent\ xc3\xa9- leden', although I would be concerned that there are other iso-8859-1 strings in list attributes.
Anyway, I see this as an issue worth fixing. The fix I would propose is in Mailman/ Handlers/ CookHeaders. py replace the line at the end of the definition of uheader which is currently
return Header(s, charset, maxlinelen, header_name, continuation_ws)
with
try:
syslog( 'error' , 'list: %s: can\'t decode "%s" as %s', mlist.internal_ name(), s, charset)
return Header(s, charset, maxlinelen, header_name, continuation_ws)
except UnicodeError:
return Header('', charset, maxlinelen, header_name, continuation_ws)