diff --git a/postfix-use-lmdb-by-default-instead-of-libdb.patch b/postfix-use-lmdb-by-default-instead-of-libdb.patch
new file mode 100644
index 0000000000000000000000000000000000000000..164134e6e189a9e6738bd2f9d2392f3eb936d589
--- /dev/null
+++ b/postfix-use-lmdb-by-default-instead-of-libdb.patch
@@ -0,0 +1,34 @@
+From 771dfac772b6d4893b6043b70336fae46e60351f Mon Sep 17 00:00:00 2001
+From: eaglegai <eaglegai@163.com>
+Date: Mon, 24 May 2021 20:11:06 +0800
+Subject: [PATCH] use lmdb by default instead of libdb
+
+---
+ conf/main.cf | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/conf/main.cf b/conf/main.cf
+index 495e346..6d7b236 100644
+--- a/conf/main.cf
++++ b/conf/main.cf
+@@ -402,7 +402,7 @@ unknown_local_recipient_reject_code = 550
+ # "postfix reload" to eliminate the delay.
+ #
+ #alias_maps = dbm:/etc/aliases
+-alias_maps = hash:/etc/aliases
++alias_maps = lmdb:/etc/aliases
+ #alias_maps = hash:/etc/aliases, nis:mail.aliases
+ #alias_maps = netinfo:/aliases
+ 
+@@ -413,7 +413,7 @@ alias_maps = hash:/etc/aliases
+ #
+ #alias_database = dbm:/etc/aliases
+ #alias_database = dbm:/etc/mail/aliases
+-alias_database = hash:/etc/aliases
++alias_database = lmdb:/etc/aliases
+ #alias_database = hash:/etc/aliases, hash:/opt/majordomo/aliases
+ 
+ # ADDRESS EXTENSIONS (e.g., user+foo)
+-- 
+1.8.3.1
+
diff --git a/postfix.spec b/postfix.spec
index 1ff21cf6a30f0f5916e1aabf8f76562d3babc247..42f0a20c2a0b2cd04fdfc8d3f222959c5657a324 100644
--- a/postfix.spec
+++ b/postfix.spec
@@ -23,7 +23,7 @@
 Name:           postfix
 Summary:        Postfix Mail Transport Agent
 Version:        3.3.1
-Release:        16
+Release:        17
 Epoch:          2
 URL:            http://www.postfix.org
 License:        (IPL-1.0 and GPLv2+) or (EPL-2.0 and GPLv2+)
@@ -47,6 +47,8 @@ Patch8:         fix-build-error-with_glibc2.30-ftbfs.patch
 Patch9:         fix-multiple-definition-error-with-gcc-10.patch
 Patch10:        postfix-3.6.2-glibc-234-build-fix.patch 
 
+Patch9000:	postfix-use-lmdb-by-default-instead-of-libdb.patch	
+
 BuildRequires:  perl-generators pkgconfig zlib-devel systemd-units libicu-devel libnsl2-devel gcc m4 openldap-devel
 BuildRequires:  cyrus-sasl-devel pcre-devel mariadb-connector-c-devel postgresql-devel sqlite-devel openssl-devel procps-ng
 BuildRequires:  chrpath
@@ -111,6 +113,8 @@ PostgreSQL maps with Postfix, you need this.
 %patch9 -p1
 %patch10 -p1
 
+%patch9000 -p1
+
 sed -i \
 's|^\(\s*#define\s\+DEF_SHLIB_DIR\s\+\)"/usr/lib/postfix"|\1"%{_libdir}/postfix"|' \
 src/global/mail_params.h
@@ -548,6 +552,12 @@ fi
 %{postfix_doc_dir}/README_FILES/*
 
 %changelog
+* Tue Mar 01 2022 xingwei<xingwei14@h-partners.com> - 2:3.3.1-17
+- Type:bugfix
+- ID:NA
+- SUG:NA
+- DESC:set lmdb database by default in main.cf
+
 * Wed Feb 23 2022 xihaochen<xihaochen@h-partner.com> - 2:3.3.1-16
 - Type:bugfix
 - ID:NA