Hi,
Failed <snip> rr=Site gmail.com (2607:f8b0:4001:c5a::1a) said after data sent: 550 5.7.1 https://support.google.com/mail/?p=NotAuthorizedError 75-20020a6b144e000000b007a2a17ef77bsi3551757iou.146 - gsmtp 550-5.7.1 [2607:fe28:0:4000::10] The IP you're using to send mail is not\n550-5.7.1 authorized to send email directly to our servers. Please use the SMTP\n550-5.7.1 relay at your service provider instead. Learn" What's interesting is that all the failure come from our email server's IPv6 address, which has been in place for 5+ years and matching FQDN and PTR.
what about DKIM/SPF? Regards Bjoern _______________________________________________ mailop mailing list mailop@mailop.org https://list.mailop.org/listinfo/mailop
