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SPF record for MIT.Edu

Does MIT have a Sender Policy Framework (SPF) record?


SPF is a system that says what IP addresses are allowed to send mail on behalf of email addresses.


Yes, MIT has an SPF record. It is a lenient one. You can use a DNS lookup command to look it up. (Output wrapped for clarity.)

nslookup -type=txt

answer: text = "v=spf1 ip4:
ip4: ip4:
ip4: ip4:
ip4:  ~all"

The "ip4" sections mean "mail that is from a address ought to come from the named IP ranges." (Result: Pass. Intended action: accept.)

The "~all" on the end means: "mail from all other IPs is discouraged but not forbidden; it is okay to accept such mail." (Result: SoftFail. Intended action: accept but mark.)

More information

IS&T Contributions

Documentation and information provided by IS&T staff members

Last Modified:

May 22, 2014

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