Getting an error message with I use the "Contact Us" on various club's site

Greetings,

I am planning to visit several clubs in Houston, Austiin and Dallas TX this month and when I send a request to visit, I get the following email message back.
WARNING: An email security check failed during email processing. Your email was still delivered.

        (DKIM Signature Verification: fail (message has been altered))

Emails failing security checks may be blocked in the future.
If you have any questions about this, please visit  support.toastmastersclubs.org .
One attachment • Scanned by Gmail

I don't know why I'm getting this message, and I'm not sure if the club received my request.

Please advise.

Jatika

it is because of the new DKIM and Dmarc rules. email that is forwarded sometimes breaks, depending on the receiving email service.