Hello Zoho Support,

We noticed that one of your outbound IP addresses (136.143.188.12), which delivers our domain’s mail, is currently listed on the UCEProtect blacklist. Because of this, our messages are sometimes flagged as spam by recipient servers.

Could you please investigate this issue and take the necessary actions to have the IP delisted from the blacklist? Also, let us know if there are any steps required from our side.

Thank you for your help.