Can a SPF record include multiple domains?

An individual SPF record is limited to 10 “include” lookups. This means your record cannot generate more than 10 references to other domains. This means that every “instance”, “a”, “mx”, “ptr”, “exists”, “redirect” will generate one lookup.

How do I add multiple domains to an SPF record?

How to Include Multiple SPF Records

  1. Declaration: Start the record with v=spf1 (don’t use this again in the rule—it must only appear at the start)
  2. Allowed domains: Add an include for each domain.
  3. Enforcement rule: End the record with one ~all statement (again, only use this at the end)

Does SPF include subdomains?

The answer is no. SPF policy discovery works differently than DMARC policy discovery in this regard: if SPF is unable to find an SPF record on a subdomain, it won’t go up to try the organizational domain; instead, SPF will return none as the check result.

How many records can be in an SPF record?

10 DNS SPF
Sender Policy Framework (SPF) specification comes with a limit of only 10 DNS SPF lookups per SPF record. If you are a domain owner and planning to add an SPF record to the DNS database, ensure that this limit is not exceeded, or else your SPF record check will fail.

How many characters can an SPF record be?

255 character
Sender Policy Framework (SPF) records have a 255 character string limit in Domain Name System (DNS). If you have an SPF record with a string longer than 255 characters, you will fail the SPF authentication check. Remove any mechanisms from your SPF record that resolve to the same domain.

Can you have two SPF TXT records?

The answer is no: a domain MUST NOT have multiple SPF records, otherwise SPF fails with PermError. An SPF record is a TXT record in the DNS starting exactly with “v=spf1”, followed by an array of mechanisms and/or modifiers.

What should an SPF record include?

Your SPF record should include a reference to Google Workspace, and to the domains and IP addresses of all servers or services that send mail for your domain.

Can a domain have two A records?

The value of an A record is always an IP address, and multiple A records can be configured for one domain name. For example, altostrat.com is a Google domain with an A record pointing to 68.178. 232.100.

Can you have multiple TXT records in DNS?

Multiple TXT records are completely legal per the DNS standards. Multiple TXT records implementing a specific standard can potentially be illegal, but only within the scope of that one standard.