diff --git a/cmdeploy/src/cmdeploy/acmetool/__init__.py b/cmdeploy/src/cmdeploy/acmetool/__init__.py
index e4e1ed84..e0e8c02f 100644
--- a/cmdeploy/src/cmdeploy/acmetool/__init__.py
+++ b/cmdeploy/src/cmdeploy/acmetool/__init__.py
@@ -67,7 +67,7 @@ class AcmetoolDeployer(Deployer):
         )
         files.template(
             src=importlib.resources.files(__package__).joinpath("desired.yaml.j2"),
-            dest=f"/var/lib/acme/desired/{self.domains[0]}", # 0 is mailhost TLD
+            dest=f"/var/lib/acme/desired/{self.domains[0]}",  # 0 is mailhost TLD
             user="root",
             group="root",
             mode="644",
diff --git a/cmdeploy/src/cmdeploy/dovecot/deployer.py b/cmdeploy/src/cmdeploy/dovecot/deployer.py
index bb3bd764..2e9bf5b6 100644
--- a/cmdeploy/src/cmdeploy/dovecot/deployer.py
+++ b/cmdeploy/src/cmdeploy/dovecot/deployer.py
@@ -42,7 +42,9 @@ class DovecotDeployer(Deployer):
         restart = False if self.disable_mail else self.need_restart
 
         systemd.service(
-            name="Disable dovecot for now" if self.disable_mail else "Start and enable Dovecot",
+            name="Disable dovecot for now"
+            if self.disable_mail
+            else "Start and enable Dovecot",
             service="dovecot.service",
             running=False if self.disable_mail else True,
             enabled=False if self.disable_mail else True,
diff --git a/cmdeploy/src/cmdeploy/postfix/deployer.py b/cmdeploy/src/cmdeploy/postfix/deployer.py
index 96197bd7..f18f3e4e 100644
--- a/cmdeploy/src/cmdeploy/postfix/deployer.py
+++ b/cmdeploy/src/cmdeploy/postfix/deployer.py
@@ -97,7 +97,9 @@ class PostfixDeployer(Deployer):
             server.shell(
                 name="Validate postfix configuration",
                 # Extract stderr and quit with error if non-zero
-                commands=["""bash -c 'w=$(postconf 2>&1 >/dev/null); [[ -z "$w" ]] || { echo "$w"; false; }'"""],
+                commands=[
+                    """bash -c 'w=$(postconf 2>&1 >/dev/null); [[ -z "$w" ]] || { echo "$w"; false; }'"""
+                ],
             )
         self.need_restart = need_restart