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A comment on Valid Email Addresses. Parent comment

Re:Valid Email Addresses by dfc on Friday November 30, 2012 @03:03PM (#4855153)
Without getting too existential what else could "valid" possibly mean.
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Re:Valid Email Addresses by randallsquared on Friday November 30, 2012 @04:12PM (#4855476)
One that someone is using to accept mail.
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