Prereq: "3.0.10"
diff -cr --new-file /var/tmp/postfix-3.0.10/src/global/mail_version.h ./src/global/mail_version.h
*** /var/tmp/postfix-3.0.10/src/global/mail_version.h	2017-06-13 13:35:49.000000000 -0400
--- ./src/global/mail_version.h	2017-10-28 10:13:52.000000000 -0400
***************
*** 20,27 ****
    * Patches change both the patchlevel and the release date. Snapshots have no
    * patchlevel; they change the release date only.
    */
! #define MAIL_RELEASE_DATE	"20170613"
! #define MAIL_VERSION_NUMBER	"3.0.10"
  
  #ifdef SNAPSHOT
  #define MAIL_VERSION_DATE	"-" MAIL_RELEASE_DATE
--- 20,27 ----
    * Patches change both the patchlevel and the release date. Snapshots have no
    * patchlevel; they change the release date only.
    */
! #define MAIL_RELEASE_DATE	"20171028"
! #define MAIL_VERSION_NUMBER	"3.0.11"
  
  #ifdef SNAPSHOT
  #define MAIL_VERSION_DATE	"-" MAIL_RELEASE_DATE
diff -cr --new-file /var/tmp/postfix-3.0.10/HISTORY ./HISTORY
*** /var/tmp/postfix-3.0.10/HISTORY	2017-06-13 13:32:16.000000000 -0400
--- ./HISTORY	2017-10-28 08:29:55.000000000 -0400
***************
*** 21870,21872 ****
--- 21870,21878 ----
  	by other users. This fix does not change Postfix behavior
  	for Berkeley DB < 3, but reduces file create performance
  	for Berkeley DB 3 .. 4.6.  File: util/dict_db.c.
+  
+ 20171024
+ 
+ 	Bugfix (introduced: Postfix 3.0) missing dynamicmaps support
+ 	in the Postfix sendmail command broke authorized_submit_users
+ 	with a dynamically-loaded map type. File: sendmail/sendmail.c.
diff -cr --new-file /var/tmp/postfix-3.0.10/src/sendmail/sendmail.c ./src/sendmail/sendmail.c
*** /var/tmp/postfix-3.0.10/src/sendmail/sendmail.c	2015-01-13 14:31:27.000000000 -0500
--- ./src/sendmail/sendmail.c	2017-10-26 17:53:54.000000000 -0400
***************
*** 467,472 ****
--- 467,473 ----
  #include <deliver_request.h>
  #include <mime_state.h>
  #include <header_opts.h>
+ #include <mail_dict.h>
  #include <user_acl.h>
  #include <dsn_mask.h>
  
***************
*** 1077,1082 ****
--- 1078,1085 ----
  	msg_syslog_init(mail_task("sendmail"), LOG_PID, LOG_FACILITY);
      get_mail_conf_str_table(str_table);
  
+     mail_dict_init();
+ 
      if (chdir(var_queue_dir))
  	msg_fatal_status(EX_UNAVAILABLE, "chdir %s: %m", var_queue_dir);