Can not email gmail users!!!! #550-5.7.1
as of 9/25/2015 we can no longer email any gmail addresses. I continue to recieve this message:
mx.google.com #550-5.7.1 [2601:281:c700:b700:85dc:3336:29b7:937c] Our system has detected that 550-5.7.1 this message does not meet IPv6 sending guidelines regarding PTR 550-5.7.1 records and authentication. Please review 550-5.7.1 https://support.google.com/mail/?p=ipv6_authentication_error for more 550 5.7.1 information. t3si10175193obx.29 - gsmtp ##
We host our own email server. I have checked our email spf record and the dkim settings per gmail document above. That leaves the reversed DNS issue... I however can not get anyone from comcast to answer my email request.