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We have recently started using Office 365 for our email, which requires us to add a DNS TXT record with the value v=spf1 include:spf.protection.outlook.com -all. We already have an SPF record with the value v=spf1 include:spf.mandrillapp.com ?all for Mandrill, an SMTP sender we also use.

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My concern is this might cause some conflict. Is my concern valid or will be be fine with these two SPF records?

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marked as duplicate by Rex, TheCleaner, Jenny D, MichelZ, Ward Apr 2 at 14:17

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1 Answer 1

up vote 3 down vote accepted

You can only have one SPF record.
You need to combine them like so:

v=spf1 include:spf.mandrillapp.com include:spf.protection.outlook.com -all

or

v=spf1 include:spf.mandrillapp.com include:spf.protection.outlook.com ?all
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