Hello,
whenever a user signs up for my website or tries to reset their password, I get this error message:

A message that you sent was rejected by the local scanning code that
checks incoming messages on this system. The following error was given:

"Relaying not permitted"

------ This is a copy of your message, including all the headers. ------
Received: from REMOVED FOR PRIVACY by REMOVED FOR PRIVACY
(envelope-from <REMOVED FOR PRIVACY>)
id 1sItdY-00ByaM-38
for REMOVED FOR PRIVACY;
Sun, 16 Jun 2024 13:25:52 -0400
To: REMOVED FOR PRIVACY
Subject: Reset your password
Date: Sun, 16 Jun 2024 17:25:52 +0000
From: "REMOVED FOR PRIVACY" <REMOVED FOR PRIVACY>
Message-ID: <REMOVED FOR PRIVACY>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Sender: <REMOVED FOR PRIVACY>

Is there a way to fix this? I have premium and had a tech support install it for me so I am not sure if this is something I can easily fix.
Thank you!