On Sat, May 23, 2015 at 07:31:27PM +0200, Matthieu Herrb wrote: > 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
I've committed a fix to 5.6 -stable, this bug was introduced when eric@ switched to the new async resolver (asr) in OpenBSD 5.4. OpenBSD 5.6 and 5.7 are the two currently supported releases of OpenBSD, so when possible, you should upgrade to 5.7 or at least 5.6-stable. If you wish to prolong the inevitable, well, then you can do as Matthieu suggests and backport this yourself. :-) -Bryan.
