> It's interesting to me that your chosen example of "doing it right" is > in fact doing 2 very wrong things (bl.spamcop.net as a blacklist, and > sender callback).
What's the problem with bl.spamcop.net?
> It's interesting to me that your chosen example of "doing it right" is > in fact doing 2 very wrong things (bl.spamcop.net as a blacklist, and > sender callback).
What's the problem with bl.spamcop.net?