Hi Geoff, OU-002 should be related to Symantec Brightmail - integrated into Outlook.com's filtering. Use this form to check if it's that's your case and ask for an "investigation" if you're sure you fixed whatever issues might have caused it.
http://ipremoval.sms.symantec.com/lookup/ According to my experience (your and other's mileage may vary): - It might take a while (from a few hours to a couple of days) before it's removed from this list AND outlook notices it. - I rarely had an OU-002 which I could not ascribe to "something". So you might want to actually look closely into what you're sending there and not assume it's a false positive right away. HTH Davide Davide Migliavacca cto, ContactLab Tel +39 02 2831181 www.contactlab.com > -----Original Message----- > From: mailop [mailto:mailop-boun...@mailop.org] On Behalf Of Geoff > Mulligan > Sent: Tuesday, July 14, 2015 10:05 PM > To: mailop@mailop.org > Subject: [mailop] problem sending to live.com and msn.com > > Hello everyone, > I wrote a while back about problems sending to aol and yahoo (I think > that I've sort of solved that.) > > I run a mailing list for the USAF Academy Alumni and another for the > White House PIF Alumni and just recently I started getting bounces from > live and msn. > > Here is the error: > > <pinkk...@live.com>: host mx1.hotmail.com[65.55.92.168] said: 550 OU-002 > (SNT004-MC3F25) Unfortunately, messages from 209.177.157.218 weren't > sent. > Please contact your Internet service provider since part of their > network > is on our block list. You can also refer your provider to > http://mail.live.com/mail/troubleshooting.aspx#errors. (in reply to MAIL > FROM command) > > 550 OU-002 has something possibly to do with my IP/domain reputation. I > don't think 209.177.157.218 is on any spam list. > > Can anyone help me correct this? > > Geoff > > > > _______________________________________________ > mailop mailing list > mailop@mailop.org > http://chilli.nosignal.org/mailman/listinfo/mailop _______________________________________________ mailop mailing list mailop@mailop.org http://chilli.nosignal.org/mailman/listinfo/mailop
