diff --git a/server/postfix/files/postfix-glibc230.patch b/server/postfix/files/postfix-glibc230.patch
new file mode 100644
index 0000000000..23a869bd8d
--- /dev/null
+++ b/server/postfix/files/postfix-glibc230.patch
@@ -0,0 +1,31 @@
+--- a/src/dns/dns_str_resflags.c	2016-05-15 18:20:14.000000000 +0300
++++ b/src/dns/dns_str_resflags.c	2019-05-03 17:29:16.000000000 +0300
+@@ -52,18 +52,28 @@
+ static const LONG_NAME_MASK resflag_table[] = {
+     "RES_INIT", RES_INIT,
+     "RES_DEBUG", RES_DEBUG,
++#ifdef RES_AAONLY
+     "RES_AAONLY", RES_AAONLY,
++#endif
+     "RES_USEVC", RES_USEVC,
++#ifdef RES_PRIMARY
+     "RES_PRIMARY", RES_PRIMARY,
++#endif
+     "RES_IGNTC", RES_IGNTC,
+     "RES_RECURSE", RES_RECURSE,
+     "RES_DEFNAMES", RES_DEFNAMES,
+     "RES_STAYOPEN", RES_STAYOPEN,
+     "RES_DNSRCH", RES_DNSRCH,
++#ifdef RES_INSECURE1
+     "RES_INSECURE1", RES_INSECURE1,
++#endif
++#ifdef RES_INSECURE2
+     "RES_INSECURE2", RES_INSECURE2,
++#endif
+     "RES_NOALIASES", RES_NOALIASES,
++#ifdef RES_USE_INET6
+     "RES_USE_INET6", RES_USE_INET6,
++#endif
+ #ifdef RES_ROTATE
+     "RES_ROTATE", RES_ROTATE,
+ #endif
diff --git a/server/postfix/pspec.xml b/server/postfix/pspec.xml
index b7bf9edbc4..aa89f242b1 100644
--- a/server/postfix/pspec.xml
+++ b/server/postfix/pspec.xml
@@ -12,7 +12,7 @@
         <IsA>service</IsA>
         <Summary>A fast and secure drop-in replacement for sendmail</Summary>
         <Description>Postfix is Wietse Venema's mailer that started life as an alternative to the widely-used Sendmail program.</Description>
-        <Archive sha1sum="1b56e682298abf947be4921a5c0d50ba8012eee1" type="targz">ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-3.3.1.tar.gz</Archive>
+        <Archive sha1sum="044a2949f50f4fe3d6d569673bcf691a9105ad60" type="targz">ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-3.4.6.tar.gz</Archive>
         <BuildDependencies>
             <Dependency>db-devel</Dependency>
             <Dependency>libnsl-devel</Dependency>
@@ -25,7 +25,7 @@
             <Dependency>mit-kerberos</Dependency>
         </BuildDependencies>
         <Patches>
-	    <!--<Patch level="1">postfix-alternatives.patch</Patch>-->
+            <Patch level="1">postfix-glibc230.patch</Patch>
             <Patch level="1">postfix-large-fs.patch</Patch>
         </Patches>
     </Source>
@@ -91,6 +91,13 @@
     </Package>
 
     <History>
+        <Update release="5">
+            <Date>2020-01-27</Date>
+            <Version>3.4.6</Version>
+            <Comment>Version bump.</Comment>
+            <Name>Mustafa Cinasal</Name>
+            <Email>muscnsl@gmail.com</Email>
+        </Update>
         <Update release="4">
             <Date>2018-09-02</Date>
             <Version>3.2.0</Version>