> Mark, just curious if you are running Botnet? I found that some
> messages cause the Botnet RDNS test to timeout after hanging for about
> 30 seconds, and then network test randomly fail (primarily URIBL
> tests). I found that if I disable Botnet, then all network tests will
> run fine on the very same messages.

Thanks, looks like the same cause (Botnet runs with Razor, dcc, etc.,
before the first and the second round of DNS launches). Please try the patch
attached to
(applies to SA 2.3.1 or 2.3.0), it is likely to fix these symptoms too.