diff --git a/php.ini-development b/php.ini-development
index 79a194d065f..b686ceb6a29 100644
--- a/php.ini-development
+++ b/php.ini-development
@@ -986,6 +986,13 @@ cli_server.color = On
 ; otherwise output encoding conversion cannot be performed.
 ;iconv.output_encoding =
 
+[imap]
+; rsh/ssh logins are disabled by default. Use this INI entry if you want to
+; enable them. Note that the IMAP library does not filter mailbox names before
+; passing them to rsh/ssh command, thus passing untrusted data to this function
+; with rsh/ssh enabled is insecure.
+;imap.enable_insecure_rsh=0
+
 [intl]
 ;intl.default_locale =
 ; This directive allows you to produce PHP errors when some error
diff --git a/php.ini-production b/php.ini-production
index e737c83a723..74fe3c5d10d 100644
--- a/php.ini-production
+++ b/php.ini-production
@@ -993,6 +993,13 @@ cli_server.color = On
 ; otherwise output encoding conversion cannot be performed.
 ;iconv.output_encoding =
 
+[imap]
+; rsh/ssh logins are disabled by default. Use this INI entry if you want to
+; enable them. Note that the IMAP library does not filter mailbox names before
+; passing them to rsh/ssh command, thus passing untrusted data to this function
+; with rsh/ssh enabled is insecure.
+;imap.enable_insecure_rsh=0
+
 [intl]
 ;intl.default_locale =
 ; This directive allows you to produce PHP errors when some error