Email server - SMTP test fails to detect typos in the "from" address

Email server - SMTP test fails to detect typos in the "from" address: Steps to reproduce 1. Log into NextCloud as administrator 2. Open Basic settings 3. Go to "Email server" section 4. Populate the fields of the web form with the credentials for your email server (SMTP) 5. Make use of the NextCloud administrator's email address as the "from address" 6. Make use of the SMTP server of the mail provider which NextCloud administrator's email address is hosted on 7. Make a typo in the "from address" field, in such a way that the admin@domain address is faulty, i.e....