bounced email

I have been the Admin for this site for more than 2 years. Recently I found out that I am not receiving messages from the website links. This is problematic since most of my club uses our professional emails. I have changed my email link to my other email but would prefer to have it put back to my corporate email. My company was blocking emails for a while but I believe this has been changed. Evidently this message appeared for the Admin login which I recently just noticed:
Tue, 30 Mar 2021 20:10:04 UTC, FreeToastHost System Warning]

Emails sent to the primary email address [ benidt.georgette@mayo.edu ] for Member Georgette Benidt in Club 1505727 have bounced too many times and exceeded the FreeToastHost limit for bounces.

This automatically generated message is to notify you that this email address ***has been removed*** from the FreeToastHost database to prevent it from causing further bounces. If you are able to resolve the issue with the email address, you will need to re-enter it in the system.

Repeatedly attempting to send emails to invalid, non-working email addresses hurts the overall email reputation of the FreeToastHost system and will not be tolerated.

Please ensure that valid, functioning email addresses are in use to prevent further actions of this nature in the future.

Can this be fixed or can I utilize 2 different emails on the website? Thanks!

We are not blocking the email servers for mayo.edu. You need to get in touch with their IT group and have them white list server@toastmastersclubs.org and agenda@toastmastersclubs.org

The Bounce Count for Email Address [benidt.georgette@mayo.edu] has been reset to zero.
I have sent a test email and it went through

Recipient Email Address: benidt.georgette@mayo.edu
Email Subject: [FreeToastHost] Message Not Delivered: RE: Toastmasters - Two
Date Sent: Tue, 30 Mar 2021 20:10:03 +0000

Diagnostic Code: 554 mail7.mayo.edu
Delivery Status: 5.5.0
Date Last Attempted: Tue, 30 Mar 2021 20:10:04 GMT