lmtp with non ASCII Parameters changed in dovecot 2.3

Hi,

I updated from 2.2 to 2.3 and noticed lmtp rejects parameters containing non ASCII now. this worked with dovecot-2.2 lmtp.

the string is already denied after reading in "smtp_command_parse_parameters()"

mail from: 500 5.5.2 Invalid command syntax

is there a plan to change this behaviour, or to implement the SMTPUTF8 extension in lib-smtp?

I guess thie would fix Michals "Dovecot LMTP rejecting mail from address with apostrophe" Problem too.

Greetz Matze