install dovecot extensions

Author: namachan10777

dovecot/Dockerfile

@@ -5,7 +5,16 @@ ARG DOVECOT_UID=4006
 ARG DOVECOT_GID=4006
 ARG VMAIL_UID=4007
 ARG VMAIL_GID=4007
-RUN apt-get update && apt-get install -qy dovecot-core dovecot-imapd dovecot-pop3d
+RUN apt-get update && \
+    apt-get install -qy \
+    dovecot-core \
+    dovecot-imapd \
+    dovecot-pop3d \
+    dovecot-lmtpd \
+    dovecot-sieve \
+    dovecot-managesieved \
+    dovecot-ldap \
+    dovecot-antispam
 
 RUN groupadd -g ${VMAIL_GID} vmail && \
     useradd -u $VMAIL_UID -g vmail -s /bin/false vmail && \