Re: mini-mailbomb service problems
- --On Saturday, October 27, 2012 11:58 AM -0500 Stan Hoeppner
>> If all the rejected recipient addresses follow some kind of pattern,I'd also examine either tuning the LDAP server, or migrating to a decent
>> maybe a PCRE lookup can help. We don't know enough about it to
>> suggest anything more.
> Actually, we might know enough. The op's primary stated concern is
> alleviating load/latency on his LDAP servers. Marlboro college,
> according to the website, only has ~300 students. Add
> faculty/staff/alumni/etc, and the valid user table shouldn't be all that
> large. Cron'ing a nightly, twice daily, whatever works best, script to
> pull addresses from LDAP into a Postfix virtual users table may be a
> good option here. Query the local table and eliminate LDAP lookups
> entirely, making lookups instantaneous. The frequency of the table
> update is determined by how often address changes are made to LDAP, and
> how quickly mailboxes need to go live according to organizational
> policy. Of course, the script can be run manually any time as well.
LDAP server. I was able to run all of Stanford University's LDAP traffic
through a single properly tuned LDAP server running OpenLDAP without issue,
which included all email. And that was before the proxy:... bits were
added to Postfix and before back-MDB was added to OpenLDAP (which is
significantly faster than the old BDB based backends).
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