Problems sending email to Gmail and Hotmail
I have the following problem
When I send email to Gmail returns the following: This message was created automatically by mail delivery software. A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed: carolina.e.andia@gmail.com SMTP error from remote mail server after end of data: host gmail-smtp-in.l.google.com [2607:f8b0:4002:c09::1b]: 550-5.7.1 [2a02:4780:1:1::1:8130] Our system has detected that this message does 550-5.7.1 not meet IPv6 sending guidelines regarding PTR records and 550-5.7.1 authentication. Please review 550-5.7.1 https://support.google.com/mail/?p=i...tication_error for more 550 5.7.1 information. e82si1900174ybh.213 - gsmtp I have created the back in the IPV4 and IPV6 server What could be the problem? |
disable IPv6 or publish an SPF record
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