Peter, please check out spamhous properly. since they do not respect 'and won't get classed as spam, because you request them (notify me when someone replies) - and have the easily chosen option to not receive them.' since they operate on , 'if they get enough complaints they list the company / domain as spammer' and their own tests that if they find a domain 'insecure' they list it. - I've been arguing for MONTHS to get Yahoo Groups off the list so I can get messages again at my ISP, with no luck at all.

this is fact unfortunealty. and not going to change since while Spamhous and others actually have no legal bearing at all, many ISP's use them and the only way to find out why you've stopped reciveing emails from a Domain is to ask the ISP.

Rendo runs the risk of being banned from many domains because of the way that these lists are operated...