diff --git a/postfix.spec b/postfix.spec
index 982e325..7a4e41e 100644
--- a/postfix.spec
+++ b/postfix.spec
@@ -6,6 +6,7 @@
 %bcond_without sqlite
 %bcond_without cdb
 %bcond_without ldap
+%bcond_without lmdb
 %bcond_without pcre
 %bcond_without sasl
 %bcond_without tls
@@ -48,7 +49,7 @@
 Name: postfix
 Summary: Postfix Mail Transport Agent
 Version: 3.5.4
-Release: 1%{?dist}
+Release: 2%{?dist}
 Epoch: 2
 URL: http://www.postfix.org
 License: (IBM and GPLv2+) or (EPL-2.0 and GPLv2+)
@@ -104,6 +105,7 @@ BuildRequires: systemd-units, libicu-devel, libnsl2-devel
 BuildRequires: gcc, m4, findutils
 
 %{?with_ldap:BuildRequires: openldap-devel}
+%{?with_lmdb:BuildRequires: lmdb-devel}
 %{?with_sasl:BuildRequires: cyrus-sasl-devel}
 %{?with_pcre:BuildRequires: pcre-devel}
 %{?with_mysql:BuildRequires: mariadb-connector-c-devel}
@@ -197,6 +199,16 @@ This provides support for LDAP maps in Postfix. If you plan to use LDAP
 maps with Postfix, you need this.
 %endif
 
+%if %{with lmdb}
+%package lmdb
+Summary: Postfix LDMB map support
+Requires: %{name} = %{epoch}:%{version}-%{release}
+
+%description lmdb
+This provides support for LMDB maps in Postfix. If you plan to use LMDB
+maps with Postfix, you need this.
+%endif
+
 %if %{with pcre}
 %package pcre
 Summary: Postfix PCRE map support
@@ -235,7 +247,7 @@ for f in README_FILES/TLS_{LEGACY_,}README TLS_ACKNOWLEDGEMENTS; do
 done
 
 %build
-unset AUXLIBS AUXLIBS_LDAP AUXLIBS_PCRE AUXLIBS_MYSQL AUXLIBS_PGSQL AUXLIBS_SQLITE AUXLIBS_CDB
+unset AUXLIBS AUXLIBS_LDAP AUXLIBS_LMDB AUXLIBS_PCRE AUXLIBS_MYSQL AUXLIBS_PGSQL AUXLIBS_SQLITE AUXLIBS_CDB
 CCARGS="-fPIC -fcommon"
 AUXLIBS="-lnsl"
 
@@ -247,6 +259,10 @@ CCARGS="${CCARGS} -fsigned-char"
   CCARGS="${CCARGS} -DHAS_LDAP -DLDAP_DEPRECATED=1 %{?with_sasl:-DUSE_LDAP_SASL}"
   AUXLIBS_LDAP="-lldap -llber"
 %endif
+%if %{with lmdb}
+  CCARGS="${CCARGS} -DHAS_LMDB"
+  AUXLIBS_LMDB="-llmdb"
+%endif
 %if %{with pcre}
   # -I option required for pcre 3.4 (and later?)
   CCARGS="${CCARGS} -DHAS_PCRE -I%{_includedir}/pcre"
@@ -297,9 +313,10 @@ LDFLAGS="%{?__global_ldflags} %{?_hardened_build:-Wl,-z,relro,-z,now}"
 # way how to get them in
 make -f Makefile.init makefiles shared=yes dynamicmaps=yes \
   %{?_hardened_build:pie=yes} CCARGS="${CCARGS}" AUXLIBS="${AUXLIBS}" \
-  AUXLIBS_LDAP="${AUXLIBS_LDAP}" AUXLIBS_PCRE="${AUXLIBS_PCRE}" \
-  AUXLIBS_MYSQL="${AUXLIBS_MYSQL}" AUXLIBS_PGSQL="${AUXLIBS_PGSQL}" \
-  AUXLIBS_SQLITE="${AUXLIBS_SQLITE}" AUXLIBS_CDB="${AUXLIBS_CDB}"\
+  AUXLIBS_LDAP="${AUXLIBS_LDAP}" AUXLIBS_LMDB="${AUXLIBS_LMDB}" \
+  AUXLIBS_PCRE="${AUXLIBS_PCRE}" AUXLIBS_MYSQL="${AUXLIBS_MYSQL}" \
+  AUXLIBS_PGSQL="${AUXLIBS_PGSQL}" AUXLIBS_SQLITE="${AUXLIBS_SQLITE}" \
+  AUXLIBS_CDB="${AUXLIBS_CDB}" \
   DEBUG="" SHLIB_RPATH="-Wl,-rpath,%{postfix_shlib_dir} $LDFLAGS" \
   OPT="$RPM_OPT_FLAGS -fno-strict-aliasing -Wno-comment" \
   POSTFIX_INSTALL_OPTS=-keep-build-mtime
@@ -433,7 +450,7 @@ function split_file
 # split global dynamic maps configuration to individual sub-packages
 pushd $RPM_BUILD_ROOT%{postfix_config_dir}
 for map in %{?with_mysql:mysql} %{?with_pgsql:pgsql} %{?with_sqlite:sqlite} \
-%{?with_cdb:cdb} %{?with_ldap:ldap} %{?with_pcre:pcre}; do
+%{?with_cdb:cdb} %{?with_ldap:ldap} %{?with_lmdb:lmdb} %{?with_pcre:pcre}; do
   rm -f dynamicmaps.cf.d/"$map" "postfix-files.d/$map"
   split_file "^\s*$map\b" "$map" dynamicmaps.cf
   sed -i "s|postfix-$map\\.so|%{postfix_shlib_dir}/\\0|" "dynamicmaps.cf.d/$map"
@@ -585,6 +602,8 @@ fi
 %exclude %{postfix_doc_dir}/README_FILES/CDB_README
 %exclude %{_mandir}/man5/ldap_table.5*
 %exclude %{postfix_doc_dir}/README_FILES/LDAP_README
+%exclude %{_mandir}/man5/lmdb_table.5*
+%exclude %{postfix_doc_dir}/README_FILES/LMDB_README
 %exclude %{_mandir}/man5/pcre_table.5*
 %exclude %{postfix_doc_dir}/README_FILES/PCRE_README
 
@@ -745,6 +764,15 @@ fi
 %attr(0644, root, root) %{postfix_doc_dir}/README_FILES/LDAP_README
 %endif
 
+%if %{with lmdb}
+%files lmdb
+%attr(0644, root, root) %{postfix_config_dir}/dynamicmaps.cf.d/lmdb
+%attr(0644, root, root) %{postfix_config_dir}/postfix-files.d/lmdb
+%attr(0755, root, root) %{postfix_shlib_dir}/postfix-lmdb.so
+%attr(0644, root, root) %{_mandir}/man5/lmdb_table.5*
+%attr(0644, root, root) %{postfix_doc_dir}/README_FILES/LMDB_README
+%endif
+
 %if %{with pcre}
 %files pcre
 %attr(0644, root, root) %{postfix_config_dir}/dynamicmaps.cf.d/pcre
@@ -755,6 +783,9 @@ fi
 %endif
 
 %changelog
+* Wed Jul  8 2020 Jaroslav Škarvada <jskarvad@redhat.com> - 2:3.5.4-2
+- Added support for LMDB maps
+
 * Mon Jun 29 2020 Jaroslav Škarvada <jskarvad@redhat.com> - 2:3.5.4-1
 - New version
   Resolves: rhbz#1851650