How to include multiple domains in an spf TXT Record

Question

I am looking to setup a TXT spf record that has 2 included domains... individually:

v=spf1 include:_spf.google.com ~all

and

v=spf1 include:otherdomain.com ~all

What is the proper way of combining them into a single item?

score 392 · Accepted Answer · edited Apr 13 '17 at 12:14

392

v=spf1 include:_spf.google.com include:otherdomain.com ~all

There's no restriction against including multiple names in a single entry; Hotmail, for instance, takes this to extremes. Note that multiple includes, or nested ones, need to stay under the limit of 10 total DNS lookups for the whole SPF check.

edited Apr 13 '17 at 12:14

Community

1

answered Jun 22 '11 at 18:15

Shane Madden

116,404
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score 1 · Answer 2 · answered Mar 30 '22 at 04:24

You can do this with spacing but use a tool to verify the 10 DNS lookup limit has not been breached. You cannot have multiple SPF records either so you may need to be brutal with the shortlist.

As an aside, you do not need a:foo.com if you have include:foo.com in the same string. If this is is a fallacious remark, please comment below.

score 1 · Answer 3 · edited Jun 01 '18 at 04:51

1

It look like you can merge both together into one entry. Lenovo.com appears to be an example of this:

v=spf1 include:spf.messagelabs.com include:_netblocks.eloqua.com ~all

edited Jun 01 '18 at 04:51

JorgeM

269

answered Jun 22 '11 at 18:15

user48838

7,419

How to include multiple domains in an spf TXT Record

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