1; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
2;
3; SPDX-License-Identifier: MPL-2.0
4;
5; This Source Code Form is subject to the terms of the Mozilla Public
6; License, v. 2.0.  If a copy of the MPL was not distributed with this
7; file, you can obtain one at https://mozilla.org/MPL/2.0/.
8;
9; See the COPYRIGHT file distributed with this work for additional
10; information regarding copyright ownership.
11
12$TTL 300	; 5 minutes
13@			IN SOA	mname1. . (
14				2000042407 ; serial
15				20         ; refresh (20 seconds)
16				20         ; retry (20 seconds)
17				1814400    ; expire (3 weeks)
18				3600       ; minimum (1 hour)
19				)
20			NS	ns1
21ns1			A	10.53.0.1
22@			MX	0 m1.mail-servers.example.
23@			MX	0 m2.mail-servers.example.
24@			MX	0 m3.mail-servers.example.
25@			MX	0 m4.mail-servers.example.
26@			MX	0 m5.mail-servers.example.
27@			MX	0 m6.mail-servers.example.
28@			MX	0 m7.mail-servers.example.
29@			MX	0 m8.mail-servers.example.
30@			MX	0 m9.mail-servers.example.
31@			MX	0 m10.mail-servers.example.
32@			MX	0 m11.mail-servers.example.
33@			MX	0 m12.mail-servers.example.
34@			MX	0 m13.mail-servers.example.
35@			MX	0 m14.mail-servers.example.
36@			MX	0 m15.mail-servers.example.
37@			MX	0 m16.mail-servers.example.
38@			MX	0 m17.mail-servers.example.
39@			MX	0 m18.mail-servers.example.
40@			MX	0 m19.mail-servers.example.
41@			MX	0 m20.mail-servers.example.
42@			MX	0 m21.mail-servers.example.
43@			MX	0 m22.mail-servers.example.
44@			MX	0 m23.mail-servers.example.
45@			MX	0 m24.mail-servers.example.
46@			MX	0 m25.mail-servers.example.
47@			MX	0 m26.mail-servers.example.
48@			MX	0 m27.mail-servers.example.
49@			MX	0 m28.mail-servers.example.
50@			MX	0 m29.mail-servers.example.
51