Re: [mailop] DKIM validation behaviour when multiple _domainkey TXT records are present

2021-06-03 Thread Maarten Oelering via mailop
Our free tester at emailaudit.com checks SPF, DKIM, alignment, and DMARC. Maarten Postmastery > On 2 Jun 2021, at 14:14, Simon Arlott via mailop wrote: > > I've yet to find a comprehensive DMARC tester that will handle all of the > nuances like RFC5322.From and RFC532

Re: [mailop] DKIM validation behaviour when multiple _domainkey TXT records are present

2021-06-02 Thread John Levine via mailop
It appears that Simon Arlott via mailop said: >RFC 6376 does not define what happens when there are multiple TXT >records for _domainkey selectors. > >Some implementations allow this but Yahoo doesn't. It's considered a >permanent failure. RFCs tell you how to interoperate. If they had to desc

[mailop] DKIM validation behaviour when multiple _domainkey TXT records are present

2021-06-02 Thread Simon Arlott via mailop
RFC 6376 does not define what happens when there are multiple TXT records for _domainkey selectors. Some implementations allow this but Yahoo doesn't. It's considered a permanent failure. In my case I accidentally added a second _domainkey TXT RR with an empty "" value and only noticed this