On Thu, 5 Feb 2015 08:53:23 +1100 "Voytek" <li...@sbt.net.au> wrote:
> ot: > > I have Postfix running mail server for several small domains, all > working well. > > since about 48 hours, several of my domains started getting bounced > from hotmail as per below > > ... > -------------- > Feb 5 07:06:45 emu postfix/smtp[32527]: EF7CC24E008: > to=<tt...@outlook.com>, relay=mx3.hotmail.com[65.55.37.88]:25, > delay=2.4, delays=0.49/0.04/1.6/0.19, dsn=5.0.0, status=bounced (host > mx3.hotmail.com[65.55.37.88] said: 550 SC-001 (COL004-MC2F25) > Unfortunately, messages from 103.15.178.123 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)) > Feb 5 07:06:45 emu postfix/smtp[32527]: EF7CC24E008: lost connection > with mx3.hotmail.com[65.55.37.88] while sending RCPT TO > > Most likely one or more ip addresses at RACK Hosting are sending spam. Hotmail has decided to block an entire range of ip addresses and yours is included in that range. Your provider needs to address the issue of one or more of their users sending spam and then try to get Hotmail to stop blocking. I would contact my provider immediately and make them aware that Hotmail is blocking a range of their ips. -Thom
