When no domain or IP is set for webmail access, command opencli email-webmail will display No domain configured for /webmail and webmail links in OpenPanel UI will redirect to https://no%20domain%20configured%20for%20/webmail/
Solution is to configure a webmail domain:
- option 1:
opencli email-webmail domain webmail.example.com
- option 2: from OpenAdmin > Emails > Settings
