Re: EDNS / DANE trouble with Microsoft mail.protection.outlook.com.

2016-12-01 Thread Walter Doekes
> On Thu, Nov 17, 2016 at 10:18:01PM +0100, Walter Doekes wrote: >> That looks like I have my DNS recursor to blame for the problem. It's a >> powerdns recursor, version 4.0.0~alpha2 if I'm not mistaken. >> >> I'll be forwarding the issue with the appropriate evidence there if it >> hasn't been

Re: EDNS / DANE trouble with Microsoft mail.protection.outlook.com.

2016-11-17 Thread Viktor Dukhovni
On Thu, Nov 17, 2016 at 10:18:01PM +0100, Walter Doekes wrote: > >Postfix will not directly query the remote nameserver, and in indeed > >with DANE you're supposed to be configured to *only* query the > >local resolver. What resolver is that? And how is it configured? > > > >Once the A records

Re: EDNS / DANE trouble with Microsoft mail.protection.outlook.com.

2016-11-17 Thread Walter Doekes
Awesome Viktor! Thanks for your speedy response. On 17-11-16 01:17, Viktor Dukhovni wrote: On Wed, Nov 16, 2016 at 11:15:35PM +0100, Walter Doekes wrote: this week we stumbled upon an issue where we could not send mail to certain domains, for instance em...@umcg.nl. ... It turned out that

Re: EDNS / DANE trouble with Microsoft mail.protection.outlook.com.

2016-11-16 Thread Viktor Dukhovni
On Wed, Nov 16, 2016 at 11:15:35PM +0100, Walter Doekes wrote: > this week we stumbled upon an issue where we could not send mail to certain > domains, for instance em...@umcg.nl. > > Nov 16 17:04:08 mail postfix/smtp[13330]: warning: > no MX host for umcg.nl has a valid address record > Nov

EDNS / DANE trouble with Microsoft mail.protection.outlook.com.

2016-11-16 Thread Walter Doekes
Hi there list, this week we stumbled upon an issue where we could not send mail to certain domains, for instance em...@umcg.nl. Nov 16 17:04:08 mail postfix/smtp[13330]: warning: no MX host for umcg.nl has a valid address record Nov 16 17:04:08 mail postfix/smtp[13330]: 1D1D21422C2: