Here's my guess - do you isolate forwarding traffic to its own cluster, or do you route it all through your usual outbounds?
If forwarded spam is getting mixed in with your regular mail stream let us say that hair trigger blocking won't be all that much of a surprise --srs > On 17-Nov-2016, at 1:46 PM, Hetzner Blacklist Support <blackl...@hetzner.de> > wrote: > > Hello, > > We're currently having some major issues with our IPs being blacklisted > by Microsoft. I'm signed up for the SNDS and a huge amount of our IPs > are "blocked due to user complaints or other evidence of spamming". > > It's fairly easy to have the IPs delisted by filling out the "Sender > Information for Outlook.com Delivery" form that Microsoft provides. > However, that only allows up to a /24 to be delisted at a time, which > means it is going to take a very long time to delist all of our ranges. > > Also, that doesn't actually address the underlying issue. Obviously spam > isn't being sent from all of those IPs, but there has to be some reason > Microsoft is listing them all. > > Is this something anybody here has experienced? Better yet, is there > somebody from Microsoft who could have a quick look at this and give me > some insight into the underlying issue? I've been attempting to contact > Microsoft for a while now and only ever get canned responses (if at all). > > Any tips or help would be greatly appreciated, thanks. > > Kind regards > > Bastiaan van den Berg > > Hetzner Online GmbH > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
