Rick,

> I am looking at creating our own email archiving solution using sql

This,  as  Matt  notes,  could  be  monstrous.  It  certainly  is  not
best-practice  to  store this many CLOBs (or BLOBs, if you're decoding
MIME)  in a generic DB. That's why the only RDBMS message stores worth
their  salt  are Exchange, Notes (sort of), and the archiving vendors'
back ends, as they are purpose-built on both client and server ends.

If  you  do  go  the  RDBMS  route,  you  should  definitely  consider
auto-splitting  by date into separate tables and/or separate databases
to  enable  scaling  out.  However, I'd suggest instead that you use a
well-known  format  such  as  MBOX  and  an  MBOX-aware, high-capacity
indexing/search  product  like  dtSearch. We've used dtSearch Web as a
message archive-and-search mechanism and have been very happy with the
speed (though, admittedly, the display needs a lot of tweaks).

--Sandy


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Sanford Whiteman, Chief Technologist
Broadleaf Systems, a division of
Cypress Integrated Systems, Inc.
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