CcMail was an earlier version of Lotus's mailer. They have incorporated the features in Notes and discontinued support of CcMail.
Notes is a full fledged organiser and collaboration platform. It is among the top 3 in the world (GroupWare - from Novell, Outlook from Microsoft and Notes from IBM).
Sure, you can type a letter or statement thru' notes. You can use drafts, templates etc.
In my case, monthly expense reports and attendance summaries are the least part of it.
Common appointments, groups, news, forums .. work flow starategies. It's got it all.
As you would expect it works best on a network.
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