{"action":"opened","issue":{"url":"https://api.github.com/repos/andryyy/mailcow/issues/238","labels_url":"https://api.github.com/repos/andryyy/mailcow/issues/238/labels{/name}","comments_url":"https://api.github.com/repos/andryyy/mailcow/issues/238/comments","events_url":"https://api.github.com/repos/andryyy/mailcow/issues/238/events","html_url":"https://github.com/andryyy/mailcow/issues/238","id":122469614,"number":238,"title":"IPV6 issue","user":{"login":"normanu","id":1451479,"avatar_url":"https://avatars.githubusercontent.com/u/1451479?v=3","gravatar_id":"","url":"https://api.github.com/users/normanu","html_url":"https://github.com/normanu","followers_url":"https://api.github.com/users/normanu/followers","following_url":"https://api.github.com/users/normanu/following{/other_user}","gists_url":"https://api.github.com/users/normanu/gists{/gist_id}","starred_url":"https://api.github.com/users/normanu/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/normanu/subscriptions","organizations_url":"https://api.github.com/users/normanu/orgs","repos_url":"https://api.github.com/users/normanu/repos","events_url":"https://api.github.com/users/normanu/events{/privacy}","received_events_url":"https://api.github.com/users/normanu/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-12-16T10:10:02Z","updated_at":"2015-12-16T10:10:02Z","closed_at":null,"body":"Since upgrading the mailcow that it enabled ipv6 support I get mails back from gmail.\r\n\r\n host\r\n    gmail-smtp-in.l.google.com[2a00:1450:4013:c01::1a] said: 550-5.7.1\r\n    [2001:981:da0a:1:c8a1:53ff:fe0c:e44c] Our system has detected that\r\n    550-5.7.1 this message does not meet IPv6 sending guidelines regarding PTR\r\n    550-5.7.1 records and authentication. Please review 550-5.7.1\r\n    https://support.google.com/mail/?p=ipv6_authentication_error for more 550\r\n    5.7.1 information. z186si39663674wmz.15 - gsmtp (in reply to end of DATA\r\n    command)"}}