On Mon, 21 Jun 2004, Matthew Schumacher wrote: > I already have sendmail rules to check valid email addresses against a > supported map backend (LDAP) so this basically a different way to do the > same thing but would be a bit more flexible. I wonder if their are any > performance differences between having mimedefang doing the ldap lookup > instead of sendmail. Have you noticed any performance differences in > your initial testing?
I haven't done any performance testing. I expect that a native Sendmail map lookup will be faster if the map setup is quick. For example, Sendmail's native Berkeley DB support will probably always be faster than a SOCKETMAP equivalent. However, for LDAP, if establishing an LDAP connection is expensive, then using a persistent connection within MIMEDefang, plus SOCKETMAP for communication with Sendmail, might actually be faster than a native Sendmail LDAP map. I expect that if you use a SQL backend, then keeping a persistent connection inside MIMEDefang would be a big win compared to opening a SQL database connection each time sendmail forks. I'd be interested in seeing some actual measurements. Regards, David. _______________________________________________ Visit http://www.mimedefang.org and http://www.canit.ca MIMEDefang mailing list [EMAIL PROTECTED] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
