A quick guide to setting up imap on solaris

Installing packages

Get the following packages from www.sunfreeware.com:
openssl-1.0.0.c-sol10-sparc-local
imap-2007e-sol10-sparc-local
and install both of them

/etc/services configuration

Ensure the following /etc/services entries are present
pop2            109/tcp         pop pop-2     # Post Office Protocol - V2
pop3            110/tcp                       # Post Office Protocol - Version 3
imap            143/tcp         imap2         # Internet Mail Access Protocol v2
imaps           993/tcp

inetd configuration

The inetd configuration on Solaris 10 is a pain to setup now that you cant just edit inetd.conf, however you can use inetd.conf as an input to inetconv.
This is the easiest way !

Add in the following to inetd.conf
pop     stream  tcp     nowait  root    /usr/local/sbin/ipop2d   ipop2d
pop3    stream  tcp     nowait  root    /usr/local/sbin/ipop3d   ipop3d
imap    stream  tcp     nowait  root    /usr/local/sbin/imapd    imapd
pop3s   stream  tcp     nowait  root    /usr/local/sbin/ipop3d   ipop3d
imaps   stream  tcp     nowait  root    /usr/local/sbin/imapd    imapd
Then run 
#inetconv -f
to create the service entries. Then use inetadm to check they are ok.
root@san-andres<347>inetadm | egrep "pop|imap"
enabled   online         svc:/network/pop3/tcp:default
enabled   online         svc:/network/imap/tcp:default
enabled   online         svc:/network/pop3s/tcp:default
enabled   online         svc:/network/imaps/tcp:default
enabled   online         svc:/network/pop/tcp:default

SSL configuration

Then you need to create SSL certificate as imapd will not accept plain text authentication
If you dont you will see the following type of errors in syslog when you try to connect with a plain text passwd. 
Mar 29 09:56:58 myserver imapd[6959]: [ID 210418 auth.notice] Login disabled user=user1 auth=user1 host=myotherserver.example.com [10.11.12.13]
Use openssl to create certificate for imap.
cd /usr/local/ssl/certs
/usr/local/ssl/bin/openssl req -new -x509 -nodes -out imapd.pem \ 
                -keyout imapd.pem -days 365
This should create an imapd.pem certificate file in the cert directory

Client configuration

Then in the account options on your mail client (netscape, outlook etc) choose the option to authenticate using SSL.