This type of TXT record hosts public keys attached to specific domains. DKIM RecordsĪ DomainKeys Identified Mail (DKIM) record is a modified TXT record. TXT records can also hold public key information and store different policies, such as DMARC and framework policies. This is because it would include all servers authorized to send messages on behalf of a domain. When configured for this purpose, text records can establish that an email is coming from a trusted source. There are several ways a TXT record acts as an email authenticator. Test TXT Your text goes here 1800 How TXT Records Help Prevent Email Spam If you’re under the 255 character limit, this is what a basic TXT DNS record would look like: Test TXT “example…example text” “example…example text” 1800 Here’s a visual example of separating values over the 255 character limit for a TXT record in DNS Made Easy: Each section over 255 characters must be enclosed in double quotes (see example below).

If the text value is longer than 255 characters, you’ll need to split the value into separate parts. These records aren’t meant for large bytes of data. There are no specific formatting requirements for basic TXT records, but there are some restrictions. The TXT record was first introduced as an experimental record format in 1993. But they are also used for a “higher” purpose, such as email spam prevention, domain ownership verification, and framework (SPF) policies.ĭid you know : Sender framework policy (SPF) records were deprecated in 2014 (see RFC7208 section 3.1) ? While some providers still support SPF records, the preferred record for framework policies is the TXT record. TXT records are commonly used to store contact details and general information about a domain. While most DNS records contain data only for machines, this record type can also include human-readable instructions. You’ll also see several examples of what TXT record values look like. By the end, you’ll know what it is and how it works. In this resource, we’ll cover the Text (TXT) record type.

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