diff --git a/dovecot.nix b/dovecot.nix
index e004db7..225760b 100644
--- a/dovecot.nix
+++ b/dovecot.nix
@@ -118,6 +118,7 @@ in
   # Configure certificates...
   security = lib.mkIf config.variables.useSSL {
     acme.certs."dovecot2.${config.variables.myFQDN}" = {
+      email = "kontakt+blubb1@hamburg.freifunk.net";
       domain = "${config.variables.myFQDN}";
       group = config.services.dovecot2.group;
       postRun = "systemctl restart dovecot2.service";
diff --git a/postfix.nix b/postfix.nix
index 3c274bb..24b5c9d 100644
--- a/postfix.nix
+++ b/postfix.nix
@@ -36,6 +36,7 @@ in
   security = lib.mkIf config.variables.useSSL {
     # Configure the certificates...
     acme.certs."postfix.${config.variables.myFQDN}" = {
+      email = "kontakt+blubb2@hamburg.freifunk.net";
       domain = "${config.variables.myFQDN}";
       group = config.services.postfix.group;
       postRun = "systemctl restart postfix.service";