[1dundundun]

Yesware is an interesting option. Try it out. Haven't touched boomerang or followup.cc since discovering it.

There is that privacy/security issue though. I always look at web based email as being inherently insecure anyway.

[andy10]

I tried all 3 and settled on http://toolbox.mxhero.com. I like that they also have an open source version: http://sourceforge.net/projects/mxhero/?