Google Public DNS is returning a SERVFAIL for the domain

Looking at your log, it doesn't seem to be a problem with the Volusion nameservers, it's more likely to be a problems with the caching resolvers used by the misbehaving private office networks.

The first resolution intent is by appending what I suppose is their own domain name, so when you look up find.aspenfasteners.com the resolvers first asks for find.aspenfasteners.com.fastenerwholesale.com. Then the resolver asks for the actual domain without appending anything. It asks for the IP associated with the domain by specifying the resource record type A. The Volusion name server correctly sets the return code to NXDOMAIN (=non-existing domain), because it has no A record for the domain you asked for. However, it does return the CNAME resource record in the aswer section, so it is now the job of the resolver to look up the hostname specified in the CNAME resource record.

I would look for problems on the resolver side.

This the only server?

Do a verbose/debug query to find out. What about a FQDN lookup, does that work? Do the clients have DNS suffixes to search (since you are doing short name lookup)?

You can debug by doing the following:

1. run nslookup and hit [enter]
2. type set debug and hit [enter]
3. type malam1.mdmarra.local or whatever the FQDN is and hit [enter]

Review the debug output to see what is or isn't resolving properly.

If I had to guess, the clients probably don't have a domain search suffix. But the debug output will tell you what's up.

EDIT: The latest debug log looks like your DNS server doesn't even have an authoritative zone for "network.local". You say you created the reverse zone, is there a forward lookup zone? Is the server running AD or just DNS? Your debug shows that the query for your server is forwarding out to the internet for an answer...which it shouldn't be doing, so it sounds like a forward zone isn't even setup.