pulling mussels from a shell:

/usr/local/bin/tail -f www.log | grep unsubscribe.*xxxx.ca | awk '{print $8}' | sed  -e 's/[//g' -e 's/@xxxx].//'

domains obfscurated to protect the guilty (i.e. me).

Edit: Interesting... the site strips out the escape characters, but they exist in the "To edit" form...