EnglishI have accidently deleted the DNS challenge that mailcow ACME was using. I only realised when I saw that my lets encrypt certificate had expired this morning. How do I force mailcow to generate a new Lets Encrypt Certificate and create a new DNS Challenge?
Did you already try the „Force Renewal“ section in 
Advanced SSL - mailcow: dockerized documentation ? docs.mailcow.email
HTH
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