Lets-encrypt, mail-address

Where can I enter the Mail address for lets-encrypt? I must have used the wrong router settings during installation.
The ports are well, the domain also.

Hey @alwi AFAIK you do not need to enter an email address in order to obtain a LetsEncrypt certificate when using FreedomBox:

At least I did not when setting it up. But I do already have a domain registered with a DNS provider, so this may be different from your setup in case you’re using dynamic DNS.

Cheers,
Axel