moderated Re: Mail server reverse DNS still flakey #bug
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The email is coming from 22.214.171.124, which isn't Google. It appears there was some sort of DNS hiccup from them yesterday. I believe it was temporary.
Mail server lb01.groups.io is at 126.96.36.199 and lb02.groups.io is at 188.8.131.52 where both belong to Linode. (Links are to ARIN pages)