The SPF record for your email provider did not match the sending systems for your domain. Possibly the IP address or DNS record changed recently at your ISP? On 01/18/2017 01:33 PM, TE Dukes wrote: > > -----Original Message----- > From: CentOS [mailto:centos-bounces at centos.org] On Behalf Of Hal Wigoda > Sent: Wednesday, January 18, 2017 1:18 PM > To: CentOS mailing list > Subject: Re: [CentOS] Test > > No. > > On Wed, Jan 18, 2017 at 12:11 PM, TE Dukes <tdukes at palmettoshopper.com> > wrote: > >> Is it working? >> >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> https://lists.centos.org/mailman/listinfo/centos >> > > Been getting these since last night > > This is an automatically generated Delivery Status Notification. > > Delivery to the following recipients failed permanently: > > * centos at centos.org > > Reason: There was an error while attempting to deliver your message with > [Subject: "Test"] to centos at centos.org. MTA > p3plsmtpa11-05.prod.phx3.secureserver.net received this response from the > destination host IP - 208.100.23.70 - 550 , 550 5.7.1 <centos at centos.org>: > Recipient address rejected: Message rejected due to: SPF fail - not > authorized. Please see > http://www.openspf.net/Why?s=mfrom;id=tdukes@palmettoshopper.com;ip=68.178.2 > 52.106;r=centos at centos.org > . > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos