[meta-networking] postfix: Upgrade to 3.7.3

diff --git a/meta-networking/recipes-daemons/postfix/files/0006-makedefs-Account-for-linux-6.x-version.patch b/meta-networking/recipes-daemons/postfix/files/0006-makedefs-Account-for-linux-6.x-version.patch
new file mode 100644
index 0000000000..ad1704520c
--- /dev/null
+++ b/meta-networking/recipes-daemons/postfix/files/0006-makedefs-Account-for-linux-6.x-version.patch
@@ -0,0 +1,35 @@ 
+From e5ddcf9575437bacd64c2b68501b413014186a6a Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Wed, 19 Oct 2022 10:15:01 -0700
+Subject: [PATCH] makedefs: Account for linux 6.x version
+
+Major version has bumped to 6 and script needs to know that
+
+Upstream-Status: Pending
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ makedefs | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/makedefs
++++ b/makedefs
+@@ -613,7 +613,7 @@ EOF
+ 		: ${SHLIB_ENV="LD_LIBRARY_PATH=`pwd`/lib"}
+ 		: ${PLUGIN_LD="${CC-gcc} -shared"}
+ 		;;
+- Linux.[345].*)	SYSTYPE=LINUX$RELEASE_MAJOR
++ Linux.[3-6]*)	SYSTYPE=LINUX$RELEASE_MAJOR
+ 		case "$CCARGS" in
+ 		 *-DNO_DB*) ;;
+ 		 *-DHAS_DB*) ;;
+--- a/src/util/sys_defs.h
++++ b/src/util/sys_defs.h
+@@ -751,7 +751,7 @@ extern int initgroups(const char *, int)
+  /*
+   * LINUX.
+   */
+-#if defined(LINUX2) || defined(LINUX3) || defined(LINUX4) || defined(LINUX5)
++#if defined(LINUX2) || defined(LINUX3) || defined(LINUX4) || defined(LINUX5) || defined(LINUX6)
+ #define SUPPORTED
+ #define UINT32_TYPE	unsigned int
+ #define UINT16_TYPE	unsigned short
diff --git a/meta-networking/recipes-daemons/postfix/postfix_3.6.5.bb b/meta-networking/recipes-daemons/postfix/postfix_3.6.5.bb
deleted file mode 100644
index 343a8b2df0..0000000000
--- a/meta-networking/recipes-daemons/postfix/postfix_3.6.5.bb
+++ /dev/null
@@ -1,17 +0,0 @@ 
-require postfix.inc
-
-SRC_URI += "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-${PV}.tar.gz \
-            file://main.cf \
-            file://postfix \
-            file://internal_recipient \
-            file://postfix.service \
-            file://aliasesdb \
-            file://check_hostname.sh \
-            file://0001-Fix-makedefs.patch \
-            file://0002-Change-fixed-postconf-to-a-variable-for-cross-compil.patch \
-            file://0003-makedefs-Use-native-compiler-to-build-makedefs.test.patch \
-            file://0004-Fix-icu-config.patch \
-            file://0005-makedefs-add-lnsl-and-lresolv-to-SYSLIBS-by-default.patch \
-           "
-SRC_URI[sha256sum] = "300fa8811cea20d01d25c619d359bffab82656e704daa719e0c9afc4ecff4808"
-UPSTREAM_CHECK_REGEX = "postfix\-(?P<pver>3\.6(\.\d+)+).tar.gz"
diff --git a/meta-networking/recipes-daemons/postfix/postfix_3.7.3.bb b/meta-networking/recipes-daemons/postfix/postfix_3.7.3.bb
new file mode 100644
index 0000000000..b54a97aeaf
--- /dev/null
+++ b/meta-networking/recipes-daemons/postfix/postfix_3.7.3.bb
@@ -0,0 +1,18 @@ 
+require postfix.inc
+
+SRC_URI += "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-${PV}.tar.gz \
+           file://main.cf \
+           file://postfix \
+           file://internal_recipient \
+           file://postfix.service \
+           file://aliasesdb \
+           file://check_hostname.sh \
+           file://0001-Fix-makedefs.patch \
+           file://0002-Change-fixed-postconf-to-a-variable-for-cross-compil.patch \
+           file://0003-makedefs-Use-native-compiler-to-build-makedefs.test.patch \
+           file://0004-Fix-icu-config.patch \
+           file://0005-makedefs-add-lnsl-and-lresolv-to-SYSLIBS-by-default.patch \
+           file://0006-makedefs-Account-for-linux-6.x-version.patch \
+           "
+SRC_URI[sha256sum] = "d22f3d37ef75613d5d573b56fc51ef097f2c0d0b0e407923711f71c1fb72911b"
+UPSTREAM_CHECK_REGEX = "postfix\-(?P<pver>3\.6(\.\d+)+).tar.gz"