From: brougham B. <bro...@br...> - 2006-10-31 22:49:51
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From: "Micheal Espinola Jr" <mi...@es...> > I recently performed my first installation of ASSP that was not with > Microsoft Exchange and not within a self-controlled DNS environment. > This time, the MTA is MailEnable and the server and DNS are at a hosted > co-location facility. > > My problem so far, as indicated with the subject line, happens when I > enable RBL or SPF - individually or together. Web interface performance > slows to a crawl, taking 5+ minutes for a page refresh. The outbound > mail queues also get clogged during this performance hit. Incoming > connections time-out. It appears as if ASSP is severely lagging on > something. > > If RBL and SPF are off, ASSP performs just as I know it should - > wonderfully. I'm a bit befuddled at the moment... Everything here suggests to me that it is DNS related- I would put the RBL and SPF timeouts to one second. This will at least rule out if there is something wrong with the dns library install. I would then use nslookup to test the dns server to see if you can get to the servers specified by your RBL service providers list. >From http://www.net-dns.org/docs/README.html Please note that there are some bugs in the BIND 8.1-REL nameserver that can cause it to dump core when receiving certain dynamic updates, so if you have problems using Net::DNS that might be the cause. SPF uses Net::DNS, can't tell for RPL but I'm guessing it does. I'd grab http://search.cpan.org/dist/Net-DNS/demo/perldig and do a couple of addresses. In our network at work we can't query any dns server that aren't our (anti-spoofing I guess). Bro |