I saw Open Webmail 1.63 (similar with neomail) at :

http://pkgmaster.com/packages/raq/4/

Now.. I use Neomail, can any body know about Open Webmail 1.63? Better than Neomail ?. How to switch Neomail to Open Webmail?

Have a look on the RackShack bulletin board. There was a very long thread about it.
As far as I can remember it uses more resources than NeoMail, though it does have different features. I installed the package, but then had to unistall it again, due to disk space problems :)

Openwebmail is MUCH better than Neomail. It does use more resources and is a bit larger... but I have not seen any problems from it.

Openwebmail and neomail can both be made to run simaltaneously , i have had them running since i installed openwebmail. so if openwebmail gives some problem i'll switch over to neomail.
But its running smoothly and i dont think i'll need to switch back to neomail, as it is no more supported :( .
So i'll stick to openwebmail and the team might add some more features to it.
Gud Luck