CentOS release 6.7 (Final)
When i send mail from my server to gmail i have this error:
elivery 5746: failure: 2a00:1450:400c:c07::1a_failed_after_I_sent_the_mes sage./Remote_host_said:_550-5.7.1_[2001:41d0:2:1e5f::]_Our_system_has_detected_that_this_message_does/550-5.7.1_not_meet_IPv6_sending_guidelines_regarding_P TR_records_and/550-5.7.1_authentication._Please_review/550-5.7.1__https://support.google.com/mail/?p=ipv6_authentication_error_for_more/550_5.7.1_information._q3si21483847wmb.104_-_gsmtp/
send to others email's all perfect.
How i can fix that?
When i send mail from my server to gmail i have this error:
elivery 5746: failure: 2a00:1450:400c:c07::1a_failed_after_I_sent_the_mes sage./Remote_host_said:_550-5.7.1_[2001:41d0:2:1e5f::]_Our_system_has_detected_that_this_message_does/550-5.7.1_not_meet_IPv6_sending_guidelines_regarding_P TR_records_and/550-5.7.1_authentication._Please_review/550-5.7.1__https://support.google.com/mail/?p=ipv6_authentication_error_for_more/550_5.7.1_information._q3si21483847wmb.104_-_gsmtp/
send to others email's all perfect.
How i can fix that?