Thomas Duff points out a sneaky social engineering trick that could be used to:Given my earlier post on Google's flawed aim to protect the purported privacy of their members by hiding the submission IP address, this could be cause for them to re-evaluate that position. Otherwise they risk venturing further onto that slippery slope which has already caused Hotmail and Yahoo! so much embarrassment.
See also:
Spam from Gmail
SpamCop lists Gmail
GSpam? - Part 2
Gmail, spam and blacklisting
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