On Fri, 8 Jun 2007, Matt Sergeant wrote:
box[16846]: 550 http://www.spamhaus.org/query/bl?ip=24.232.45.12 (note the wrong PID). A copy of our customer's bounce message confirms that they received this 550 error message verbatim. Does anyone know why this would have happened? Is qpsmtpd not threadsafe?This can be caused by the dnsbl plugin if the seed for DNS has not been initialised randomly enough and if you don't check response ID's against the originating query (I can't recall if we do that or not).
The first yes, since this patch: http://www.nntp.perl.org/group/perl.cvs.qpsmtpd/2006/12/msg546.html
