Kurt@OpenLDAP.org wrote:

On Feb 7, 2012, at 1:03 PM, alfiej@opera.com wrote:

...

When searching for Chinese names in the "to:" field under Thunderbird, I see asserted_value_validate_normalize() not returning LDAP_SUCCESS in filter.c. This is because the "mail" attribute in core.schema is of type "IA5 String" but the Chinese name falls outside the character set.

No, it's because Thunderbird failed to convert the email address to form expected. It should have applied the "To Ascii" conversion as defined in the EIA and IDNA specs.

Glancing over RFC 5335 and RFC 5336 the situation is not so clear since there are UTF-8 headers introduced therein. Also both RFCs have status EXPERIMENTAL. Any other specs I should read?

Ciao, Michael.