James Greig wrote:

> At this time, our advice would be to avoid MySQL 5.1 from our p.o.v.

Indeed: 5.1 sucks at this point.

> Are we likely to have orphaned data by not having the 'delete on cascade'
> foreign keys on these two tables?  

Yes.

> Or does dbmail-util compensate for this
> and remove any orphaned data?

No. Before 2.2 dbmail was targetted at mysql/myisam and solved key
constraints in the program logic. This was changed in 2.2: key
constraints and cascades are now fully depended upon for maintaining
data integrity, wherever possible.

-- 
  ________________________________________________________________
  Paul Stevens                                      paul at nfg.nl
  NET FACILITIES GROUP                     GPG/PGP: 1024D/11F8CD31
  The Netherlands________________________________http://www.nfg.nl
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