There are several small differences between Solaris 2.5 and Solaris 2.6,
especially in the CDE tools. Below are the differences on a per-tool basis
and changes you may wish to make to use those tools.
dtmail
The new dtmail (the default mail icon on the toolbar) now acts as a client
and requires a server name for outgoing messages. You can also choose to use
the dtmail program as an IMAP client.