Yes, that is bash scripting and yes it looks like verizon.net (or one of
their servers) is misconfigured. Follow the links in the mail header to
dsbl.org.
Back ticks in the command line spawn a subshell and return the output of
the command. This one is useful
grep something `find . -type f`
I use it for finding settings in /etc files. the type f says only match
text files.
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Jim Wildman, CISSP jim@rossberry.com
http://www.rossberry.com
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