On Wed, Apr 14, 2010 at 7:36 PM, <listserv.traffic at sloop.net> wrote: > First, someone's going to ask - perhaps Zen's blocking you. I don't > think so. Here's why. > -We're non-commercial, using the definition set my spamhaus, > -mail connects TOTAL are well less than 100K a day. (Less than 10K in actuality) > -and thus having more than 300K queries is pretty unlikely. I'm not privy to spamhaus.org's rate limiting policies, but you show two queries 2 seconds apart, or 86400/2 per day perhaps. > -Also, let me remind you that a restart of the bind service seems to > make the failures go away for a while, so if zen were blocking our queries, I'd think that wouldn't make a difference. Read and understood. > I certainly suspect a problem with BIND, but I can't find it, and have no idea where to go from here. > I simply don't know where to look any more. If BIND were having a problem, say allocating memory, or something, shouldn't it be in a debug level 5 log? Perhaps using 208.67.220.220 and 208.67.222.222 as resolvers or directly asking spamhaus.org if they are rate limiting you would help. kind regards/ldv