553 Relaying disallowed error
Hi, I am receiving a "553 Relaying disallowed" error when sending emails to my domain email address which I have configured in Zoho. However, I am able to receive emails from my domain email to my gmail account.
The SPF and MX entries are all configured in the domain's DNS Management panel as per the Zoho instructions.
See attached screenshots. Look forward to your assistance in resolving this issue.