On Sat, May 23, 2015 at 03:52:38PM +0000, Peter Fraser wrote: > Any message sent to send mail seems to be rejected. The mx4 name changes, but > the rejection is always the same. > It would be nice to know what the unknown error is > > Does anyone have any idea what is causing the problems > > I am currently using OpenBSD 5.5 with sendmail > (I know I should update it but I haven't got around to it yet) > hotmail recently added a 17th IP address to ther servers. There is a bug in libc's resolver that make it fail if there are more then 16 adresses for a name.
This bug has been fixed in OpenBSD 5.7. I recently backported the commit to 5.5 for the very same reason (hotmail became unreachable) without trouble. http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/lib/libc/asr/gethostnamadr_async.c.diff?r1=1.34&r2=1.35 -- Matthieu Herrb
