550 195.245.230.72 is not allowed to send mail from

It looks like you're trying to block an IP address from sending email. The message "550 195.245.230.72 is not allowed to send mail from" is an SMTP error response, which means that the email server is rejecting an email from the IP address 195.245.230.72.

Here's a breakdown of the error code:

• 550: This is a permanent error code, which means that the email server is permanently rejecting the email.
• 195.245.230.72: This is the IP address that is trying to send the email.

The error message is indicating that the IP address 195.245.230.72 is not allowed to send email from that server. This could be due to a number of reasons, such as:

• The IP address is listed on a spam blocklist, which means that it has been identified as a source of spam emails.
• The IP address is not authorized to send email from that server.
• The email server is configured to block emails from that IP address.

If you're the administrator of the email server, you may need to investigate why this IP address is being blocked and take steps to resolve the issue. If you're a user, you may need to contact your email provider or IT department to report the issue and get assistance.