Your flarum website tried to sent verification message to new users but the message land on your admin email account instead of users email account due to wrong message configuration. And you don’t want to hard-restore your website. So, What you do?

You need to edit the email addresses to default! To do so,here is the steps:
- Login to your flarum website administrator account, and select your admin profile (at top-right corner of the screen), then select administration.

- On administration page, hit the tab Email…

…and go to the section Addresses and input ‘noreply@[domainname].com’. Replace [domainname] with the actual domain name of your web site. e.g. noreply@inresite.com.

- Go down to Choose a Drive and select mail. Then go further down to Save button hit save.
Right! That is how set flarum email address to default.