Hi, >> I'm trying to understand why spamcop and SEM both think this email >> from twitter is spam: > > Did you already go to the respective service and search for the IP number > or domain (whatever they are absed on)? That should explain the why.
Yes, I should have made that more clear. I did, and it says because it has been found to send spam, but that doesn't make sense. How could it not be a FP, coming from Twitter? I've also seen several listed from sears.com IPs, among others. Even if they were found to have been listed 6 times in the last 80 days, isn't it more likely in error than twitter legitimately sending spam? Why is it that spamcop seems to be the only one that considers it spam? This is an even better analysis of that IP, and even shows it's whitelisted in other (unknown) places: http://multirbl.valli.org/lookup/128.121.146.143.html Thanks, Alex
