Just letting the list know that I have managed to get the roaming users working with the vpopmail-5.4.0-rc2 and courier-imap-2.2.2.20040118 version of courier on a redhat 7.3 box.
I noticed a post earlier saying that valias in MySQL wasn't working, however all of mine are working still as they did before. My compile time options for vpopmail were: ./configure --enable-rebuild-tcpserver-file=n --enable-roaming-users=y --enable-defaultquota=20971520S --enable-auth-module=mysql --enable-file-sync=n --enable-mysql-logging=y --enable-learn-passwords=y --enable-clear-passwd=y --enable-valias=y --enable-mysql-limits=y --enable-logging=v --enable-relay-clear-minutes=15 My courier options were: ./configure --with-trashquota --without-authpwd --without-authshadow --without-authpam --without-authuserdb --without-authcram --without-authldap --without-authmysql --without-authpgsql --without-authcustom --without-authdaemon --disable-root-check --with-redhat At first compile with vpopmail-5.4.0-rc1 I was getting the problem with the formatting of ip addresses in the relay table such as ::ffff:111.222.333 being put into the table. After a compile and install of vpopmail-5.4.0-rc2 and a make clean, configure and make/make install of courier again, all is working as expected. Shane