It was a couple years ago now, SPF and DMARC (but not DKIM iirc) were sorted. At the time MS used a third party who you could pay to get "vetted", I got a response that the problem was our server host's had another IP (not the one our emails were sent from) that had once had spam sent from it. So the facts we were responding to customer emails, that our domain had ~12 years of good behaviour, and our email servers IP being clean weren't enough. Even "whitelisting" the domain from the Hotmail/Live/Outlook.com end didn't work.
I'm still smarting, we still sometimes have problems (from a different host now) but just resend via an outlook.com address and it's fine.
So, no never had our domain marked as spam on any dbl that I've checked (but only done that sporadically).
We also had a blip with Gmail around the same time (but not the exact same time), but I reported it as a false positive and it was fixed in a few days; no problems since.
We were/are sending so few emails (<1 day average) that it's not worth me spending a couple of days trying to see through the murk of MS to fix it. We're probably not losing any revenue, just have to treat MS sent emails differently to everyone else's.
I'm still smarting, we still sometimes have problems (from a different host now) but just resend via an outlook.com address and it's fine.
So, no never had our domain marked as spam on any dbl that I've checked (but only done that sporadically).
We also had a blip with Gmail around the same time (but not the exact same time), but I reported it as a false positive and it was fixed in a few days; no problems since.
We were/are sending so few emails (<1 day average) that it's not worth me spending a couple of days trying to see through the murk of MS to fix it. We're probably not losing any revenue, just have to treat MS sent emails differently to everyone else's.
Sounds wrong to me too ;o)