Ben at MailChimp has some real stats showing how sending to old lists will kill your deliverability.
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Yesterday got 5 "notices" from @uscert_gov about "phish" identified by @apwg. Pretty sure that wouldn't come from servers in Europe, though. 3 weeks ago
When I say the message is deferred and is still in the queue, I don't mean that it's bounced and I just don't want to give you the error. 3 weeks ago
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