To update and change your password for your mail account used here at OS2 World you have to use the Mail admin feature that can be found at following url:http://webmail.os2world.net/mail/toaster.admin/
To login you uses your e-mail account userid and password, for example if you e-mail userid is myname@os2world.net the user account is then myname and the domain name you want to login at is os2world.net together with your current password.
The same administration tool can also be used to set mail forwarding and activate vacation message.
Here is an login example: