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-rw-r--r--etc/sendmail/freebsd.mc4
1 files changed, 4 insertions, 0 deletions
diff --git a/etc/sendmail/freebsd.mc b/etc/sendmail/freebsd.mc
index d8339b8bfe91..55fa404499dc 100644
--- a/etc/sendmail/freebsd.mc
+++ b/etc/sendmail/freebsd.mc
@@ -79,6 +79,10 @@ dnl Uncomment the first line to change the location of the default
dnl /etc/mail/local-host-names and comment out the second line.
dnl define(`confCW_FILE', `-o /etc/mail/sendmail.cw')
define(`confCW_FILE', `-o /etc/mail/local-host-names')
+
+dnl Uncomment both of the following lines to listen on IPv6 as well as IPv4
+dnl DAEMON_OPTIONS(`Name=IPv4, Family=inet')
+dnl DAEMON_OPTIONS(`Name=IPv6, Family=inet6')
define(`confMAX_MIME_HEADER_LENGTH', `256/128')
define(`confNO_RCPT_ACTION', `add-to-undisclosed')