[mailop] New *.outbound.protection.outlook.com servers without PTR

2018-05-22 Thread Bernhard Schmidt
them to the whitelist for scoring, but unfortunately the whitelist for Greylisting (which is necessary because the servers retry from different IPs) is FCrDNS based. Best Regards, Bernhard -- Bernhard Schmidt Netzbetrieb / IPv6 / DNSSEC Leibniz-Rechenzentrum

[mailop] Messages over IPv6 rejected by Google for failed authentication checks

2016-06-09 Thread Bernhard Schmidt
Hi, since around 13:00 UTC today all of the sudden we see massive rejects of mails towards Google when delivering on IPv6 Jun 9 15:12:07 lxmhs52 postfix-postout/smtp[50664]: 3rQQgp3VQTzyWn: to=, relay=gmail-smtp-in.l.google.com[2a00:1450:400c:c0a::1b]:25, delay=0.7, delays=0.01/0/0.16 /0.53, dsn

Re: [mailop] Messages over IPv6 rejected by Google for failed authentication checks

2016-06-09 Thread Bernhard Schmidt
On 09.06.2016 18:18, Hugo Slabbert wrote: Hi, >> since around 13:00 UTC today all of the sudden we see massive rejects of >> mails towards Google when delivering on IPv6 >> >> Jun 9 15:12:07 lxmhs52 postfix-postout/smtp[50664]: 3rQQgp3VQTzyWn: >> to=, >> relay=gmail-smtp-in.l.google.com[2a00:145

Re: [mailop] Messages over IPv6 rejected by Google for failed authentication checks

2016-06-09 Thread Bernhard Schmidt
On 09.06.2016 18:20, Laura Atkins wrote: > >> On Jun 9, 2016, at 9:06 AM, Bernhard Schmidt wrote: >> >> Header-From and Envelope-From are aligned, the sending domain does not >> have any DKIM/SPF/DMARC published. We're working on DKIM, but this is >> not rol

Re: [mailop] Messages over IPv6 rejected by Google for failed authentication checks

2016-06-10 Thread Bernhard Schmidt
ntication enforcement 6/9/16, 7:56 PM We're investigating reports of an issue with Gmail. We will provide more information shortly. -- Bernhard Schmidt Netzbetrieb / IPv6 / DNSSEC Leibniz-Rechenzentrum Leibniz Supercomputing Centre Boltzmannstr. 1