On 02/12/2011 14:35, Viktor Dukhovni wrote:
On Fri, Dec 02, 2011 at 02:23:53PM +0000, Mark Goodge wrote:
That makes no sense at all, surely nothing more productive will happen
when the spiggot is turned on 4 hours later with even more mail queued.
The point is that "following instructions" is a reasonable proxy for
"being a legitimate sender". Spammers have no motivation to jump
through the hoops, as they don't really care about mail which
doesn't get through. Legitimate senders, though, have to if they are
not to end up with large numbers of disgruntled senders and/or
recipients.
To be more specific, Yahoo's code TS01 doesn't mean "You are sending
us too much email and we want you to slow down". It means "We think
you might be a spammer, so we are setting you a simple test of
whether you can follow instructions". If you pass the test, then
when you restart sending then you'll be able to get everything
through - it won't be rate-limited by Yahoo.
I've seen no evidence that this interpretation is correct. On what
basis do you assert that this is Yahoo's policy?
Experience, mostly. I've found that ceasing retry attempts for four
hours, then restarting, typically results in the queue clearing as fast
as you can send the emails without any further errors being generated.
Mark
--
Sent from my Babbage Difference Engine
http://mark.goodge.co.uk
http://www.ratemysupermarket.com
