I am install SquirrelMail version 1.4.20-RC2 in windows 2003 IIS6 and php5.2.11 nts fastcgi. it is can not connect ipv6 email server.
Error connecting to IMAP server: mail2.v6.xiaoyu.net.
but I have try use thunderbird mail client connect ipv6 server is success.
How I do config SquirrelMail for ipv6 server?