Notification Email Unsubscription maybe in Error

[mnordhoff]

@tomybyte

What I’m asking myself is, whether I won’t get any further mailings for other domains I’ve an Let’s Encrypt certificate for with the same contact-email-adress.

You won't get any mailings.

@tomybyte

That wouldn’t be my intention and then I should have to reset this back again. How could I do this if necessary?"

See this page:

Expiration Emails - Let's Encrypt

You have to change your ACME account(s) to use a different address.