diff --git a/Dockerfile b/Dockerfile
index e0104b2..35cfed6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,6 @@ FROM debian:stable-slim
 ENTRYPOINT ["/docker-entrypoint.sh"]
 CMD ["/usr/sbin/saslauthd", "-d", "-a", "ldap", "-O", "/etc/sasl2/saslauthd.conf"]
 
-COPY smtpd.conf /etc/sasl2/smtpd.conf
 COPY entrypoint.sh /docker-entrypoint.sh
 
-RUN apt update && DEBIAN_FRONTEND=noninteractive apt install -y ca-certificates sasl2-bin libsasl2-modules-ldap && rm -rf /var/lib/apt/lists/*
+RUN apt update && DEBIAN_FRONTEND=noninteractive apt install -y sasl2-bin libsasl2-modules-ldap && rm -rf /var/lib/apt/lists/*
diff --git a/entrypoint.sh b/entrypoint.sh
index 4386fe4..04274cd 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,5 +1,7 @@
 #!/bin/sh
 
+mkdir -p /etc/sasl2/
+
 cat <<EOF > /etc/sasl2/saslauthd.conf
 ldap_servers: ${LDAP_SERVERS}
 ldap_search_base: ${LDAP_SEARCH_BASE}
@@ -10,7 +12,7 @@ ldap_bind_pw: ${LDAP_BIND_PW}
 ldap_auth_method: ${LDAP_AUTH_METHOD:-bind}
 ldap_deref: ${LDAP_DEREF:-find}
 ldap_ssl: ${LDAP_SSL:-on}
-ldap_tls_cacert_file: ${LDAP_TLS_CACERT_FILE:-/usr/share/ca-certificates/mozilla/ISRG_Root_X1.crt}
+ldap_tls_cacert_dir: ${LDAP_TLS_CACERT_DIR:-/usr/share/ca-certificates/mozilla/ISRG_Root_X1.crt}
 
 ldap_group_attr: ${LDAP_GROUP_ATTR:-member}
 ldap_group_dn: ${LDAP_GROUP_DN}
diff --git a/smtpd.conf b/smtpd.conf
deleted file mode 100644
index 1290b6a..0000000
--- a/smtpd.conf
+++ /dev/null
@@ -1,2 +0,0 @@
-pwcheck_method:saslauthd
-mech_list: PLAIN LOGIN