diff --git a/dovecot.nix b/dovecot.nix
index 4483e6f..7d978f1 100644
--- a/dovecot.nix
+++ b/dovecot.nix
@@ -362,11 +362,6 @@ in {
             } home=${cfg.state-directory}/mail/%u
           }
 
-          userdb {
-            driver = ldap
-            args = ${cfg.ldap-conf}
-          }
-
           service imap {
             vsz_limit = 1024M
           }
diff --git a/mail-server.nix b/mail-server.nix
index 4ac4c78..01525ff 100644
--- a/mail-server.nix
+++ b/mail-server.nix
@@ -210,7 +210,6 @@ in {
             "auth_bind_userdn = cn=%u,${cfg.ldap.member-ou},${cfg.ldap.base}"
             "base = ${cfg.ldap.base}"
             "user_filter = (&(objectClass=organizationalPerson)(cn=%n))"
-            "pass_filter = (&(objectClass=organizationalPerson)(cn=%n))"
           ]);
         target-file = "/run/dovecot-secret/ldap.conf";
       };
diff --git a/postfix.nix b/postfix.nix
index f4bd48f..8fa2924 100644
--- a/postfix.nix
+++ b/postfix.nix
@@ -205,11 +205,6 @@ in {
             args = ${cfg.ldap-conf}
           }
 
-          userdb {
-            driver = ldap
-            args = ${cfg.ldap-conf}
-          }
-
           service auth {
             unix_listener auth {
               mode = 0600