I received a WordFence notification:
- Your site IP address 172.67.134.178 is blacklisted by a spam filtering service
On further investigation, WordFence stated:
You are the second person today to report a similar IP address that is a Cloudflare IP being reported as spam.
https://check.spamhaus.org/listed/?searchterm=172.67.134.178
Has Cloudflare resolved the issue?