All emails from from
[email protected] to my domain is not being forwarded to my Gmail. In Cloudflare email section, it says “Delivery failed” and says:
Unknown error: transient error (421): 4.7.28 [2405:8100:c000:1::1d2:45 15] Our system has detected an unusual4.7.28 rate of unsolicited mail originating from your IP address. To4.7.28 protect our users from spam, mail sent from your IP address has been4.7.28 temporarily rate limited. Please visit
https://support.google.com/mail/?p=UnsolicitedRateLimitError to4.7.28 review our Bulk Email Senders Guidelines. jj13-20020a170903048d00b001a05b52583esi2618314plb.420 - gsmtp
How should i fix this…?