How do I add a PTRv6 record?

Hello All,
I keep getting this error message from my MTA (Exim4) when i try to send mail form my mail server to a gmail account (the error message is from gmail servers):

Our system has detected that this
550-5.7.1 message does not meet IPv6 sending guidelines regarding PTR records
550-5.7.1 and authentication. Please review
550-5.7.1 for more informat

If you click the support link, the web page says that I need a PTRv6 record that points my mail server to an PTRv6 record. How do I add an PTRv6 record to my domain?

Since the PTR record is on the side of the IP it needs to be set with your hosting company. Contact them (or search their documentation) and they will for be able to assiste if the IP isn’t shared.

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