Set up email forwarding for vanity domain?

We want to have a forwarding address, info@pittsborotoastmasters.org, which forwards to officers-5372863@toastmastersclubs.org, but it is not working. Emails sent to it are rejected with the error:

"Your message has not been delivered to any of the original recipients because it has a destination club email address (officers-5372863@toastmastersclubs.org) that is not part of the To or CC fields."

We want to be able to use the info@ email on palm cards and other promotional material, and would like to have it use our vanity domain rather than our FTH subdomain.

What do I need to do to fix this? Thanks for your help!

The email is working as designed this is not a bug. You cannot change it.

1) your available email addresses are listed on your admin control panel

2) info@ is a spam collector and we will never use it.

3) To send email to officers-nnnn@ you need to be a member of the club.

4) You have available to your club a contact email contact-nnnn or contact@customdomain that is not filtered and you can forward to 3 officers. Please see the documentation
support.toastmastersclubs.org/doc/item/email-and-contact-forms

Thanks for the prompt reply. It would meet our needs to use the contact email to forward to 3 officers as you suggest.

It's still not working, though. All resulted in the same error message. Here is what I tried:
Attempt 1:

1. Enabled contact-5372863@toastmastersclubs.org on FTH
2. Pointed the forwarding address info@pittsborotoastmasters.org to forward to contact-5372863@toastmastersclubs.org

Attempt 2:

1. In addition to above, whitelisted info@pittsborotoastmasters.org on FTH

Attempt 3:

1. Changed the forwarding address to contact@pittsborotoastmasters.org
2. Changed the whitelist to the whole domain @pittsborotoastmasters.org on FTH

What am I doing wrong? More importantly, what do I need to do to make this work?

Thanks!