Take Delta Airlines for example.  They send a message from  38.100.169.66

Looking at senderbase:
http://www.senderbase.org/lookup/?search_string=38.100.169.66
I get
Hostname mta602.e.delta.com
Domain  Help e.delta.com
Network Owner  Help Cogent Communications

I can't sender whitelist Cogent Communications, as they are a big ISP.
I already had be\.delta\.com in the whitelist.

However, it doesn't appear to match.  When I look at analyze I see:

      38.100.169.66 SenderBase: status=not classified, data=US, COGENT
COMMUNICATIONS, , , Y, 21

e.delta.com isn't in the results.

Now, I know that the senderbase web results indicate that the hostname is
just a sampling from the /24 for that netblock.  However, is there a way to
have the ASSP query to senderbase return that guess?

I'm seeing this quite a bit.

Thanks
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