[Dovecot] Dovecot 2.0.8 don´t recognize auth user format

[Wilberth Perez]

My configuration file have this lines:

# doveconf | grep user

auth_anonymous_username = anonymous
auth_master_user_separator =
auth_socket_path = auth-userdb
auth_ssl_username_from_cert = no
auth_username_chars =
abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@
auth_username_format = %Lu <-----(in version 1.2.10 this work fine)
auth_username_translation =
default_internal_user = dovecot
default_login_user = dovenull
director_user_expire = 15 mins
login_log_format_elements = user=<%u> method=%m rip=%r lip=%l mpid=%e %c
mail_max_userip_connections = 10

in this new version, my user authentication fails:

Debug: shadow(wperez at mydomain,1.2.3.4): lookup
Info: shadow(wperez at mydomain,1.2.3.4): unknown user
auth: Debug: client out: FAIL   2   user=wperez at mydomain

in my server only exists the user wperez, but dovecot uses the user
"wperez at mydomain"

in this new version auth format changes?


Thank you.