relational database for personal email storage

[Tom Metro]

R. Luoma wrote:
> I would also like to be create my custom SQL queries;
> my email directory tree is getting a bit slow
> to find-and-grep and there are some queries that I want
> to make that do not easily fit the find-and-grep method.
> 
> What suggestions do people have?

Making your email accessible through an IMAP server might be another 
option. If nothing else, you'll get a convenient UI in your mail client 
for searching through your archives.

Some IMAP servers can use indexing to make full text searching 
efficient. See for example:
http://wiki.dovecot.org/Plugins/FTS

  -Tom

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Tom Metro
Venture Logic, Newton, MA, USA
"Enterprise solutions through open source."
Professional Profile: http://tmetro.venturelogic.com/