Gordon Messmer wrote:
Jorn Argelo wrote:
Thanks for your reply. LDAP, however, is not really an option because of the
amount of emails we get. You see, the postmap hash db is an extract of the email
addresses defined in Active Directory. If we have to query AD for every email we
get, we will probably slow things down / cause a lot of load on the domain
controller (I think we're at around 65.000 emails / day ). This is why we made
the choice to make an hash db based solution rather then an LDAP solution. This
is faster and produces a lot less load.
It probably will be marginally faster, but 65,000 lookups per day isn't
that much. If you assume that the majority of that mail comes in during
8 hours, you're talking about two lookups per second. An LDAP server
should be able to handle thousands of lookups per second. The cost
shouldn't be significant, and it'll simplify your mail server
configuration considerably. (I'd imagine that using Courier's MTA
would, too)
Thanks for your input Gordon.
Perhaps it is an idea yes, but is the way I initially thought of it
possible too? I mean, we'll have to test to see the performance / get
new hardware for it, while with a hash db we don't require any
additional hardware. We can't really do the queries against another DC
as they are stressed quite a bit already.
Jorn
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