Mr. O'Driscoll, Thanks for your thoughtful comment. I confess that I thought that Edward Jones or their proxies would send enough email that they would have noticed by now if they were unable to resolve DNS names correctly. However, successful troubleshooting often depends on not taking too much for granted. When I reach someone with that information, I'll ask what IP address they were using to try to reach us.
Regards, Ken -----Original Message----- From: mailop [mailto:mailop-boun...@mailop.org] On Behalf Of Ken O'Driscoll Sent: Thursday, October 13, 2016 5:31 PM To: mailop@mailop.org Subject: Re: [mailop] Edward Jones / Alliance Data / Bigfoot Interactive Hi Ken, Have you verified that your secondary can actually resolve their outbound IP properly? I only say this because your situation reminds me of a very similar incident many years ago where a legacy firewall rule was assuming that query ports *had* to be 53. Just a wild hunch, I still remember the time I spent tracking that one down so just passing it on! Ken. -- Ken O'Driscoll / We Monitor Email +353 1 254 9400 | w: www.wemonitoremail.com On Thu, 2016-10-13 at 15:05 -0500, Ken Johnson wrote: > Contact at Edward Jones or Alliance Data? A user reports email not > received, but nothing in my exim logs to show a delivery attempt. > > Edward Jones Technical Assistance confirms the from email addresses > (nope, > not in the exim logs) and provided the IP addresses of the sending > servers > -- not in the fail2ban log, not in the permanent IP block list. EJ TA > says > 'host not reachable' for 3.5 hours. On two separate days. The > authoritative nameservers for the reverse lookup for the sending servers > are > in bigfootinteractive.com. (Bigfoot Interactative email services > acquired > by Alliance Data in 2005). > > The primary server (10) in the MX record for the destination would have > been > down, but the secondary server (20) was up. If only the first one was > tried, that would explain it. EJ TA did not have information on this > point. > > Ken > > > _______________________________________________ > 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 _______________________________________________ mailop mailing list mailop@mailop.org https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
