Resend Function not working

We move our site to another server and realized that new C7 form submissions were not sent because the email routing was not correct (should have been “remote” because domain email is G-Suite based). So we fixed the email routing and are able to receive new submissions. Sending email is a [email protected] email.
However, forwarding the logged submissions in in WP-Mail Logging still doesn’t work – on mouse-over the !Error mark we see a message that [email protected] is invalid.

Wondering how this plugin sends emails? Is it dependent on the C7 configuration?

Thanks!