Question 1

What is Sender Policy Framework (SPF)?

Accepted Answer

Sender Policy Framework (SPF) is an email‑validation protocol that enables receiving mail servers to verify that messages claiming to originate from a domain are sent from IP addresses authorized by that domain’s administrators, helping prevent spoofing.

Question 2

How many companies implement Sender Policy Framework (SPF)?

Accepted Answer

Based on our data, 9,949 companies implement Sender Policy Framework (SPF). This number is updated daily as we discover new companies through job posting analysis.

Question 3

What types of companies implement Sender Policy Framework (SPF)?

Accepted Answer

Sender Policy Framework (SPF) is relevant across multiple industries including Government Administration, Aviation and Aerospace Component Manufacturing, Primary and Secondary Education. Companies range from startups to enterprises with 10,000+ employees.

Question 4

How does TheirStack track companies related to Sender Policy Framework (SPF)?

Accepted Answer

TheirStack analyzes millions of job postings daily from company career pages, job boards, and recruitment platforms. When a company mentions Sender Policy Framework (SPF) in their job descriptions, requirements, or responsibilities, we identify them as related to Sender Policy Framework (SPF) and add them to our database.

Question 5

How can I get the full list of companies that implement Sender Policy Framework (SPF)?

Accepted Answer

You can access the complete list of 9,949 companies on TheirStack. The data includes company name, industry, size, location, funding, and revenue. Available via our web app or API.

Question 6

How often is the company data updated?

Accepted Answer

Our database is refreshed daily. We continuously monitor job postings to detect new companies implementing Sender Policy Framework (SPF) and update existing records.

Company	Country	Industry	Employees	Revenue	Technologies
Workingfor.be	Belgium	Government Administration	18k		Sender Policy Framework (SPF)
U.S. Customs and Border Protection	United States	Government Administration	60k	$1B	Sender Policy Framework (SPF)
Federal Aviation Administration	United States	Aviation and Aerospace Component Manufacturing	33k		Sender Policy Framework (SPF)
DSST Public Schools	United States	Primary and Secondary Education	1k		Sender Policy Framework (SPF)
Proofpoint	United States	Computer and Network Security	5.2k	$1.1B	Sender Policy Framework (SPF)
SPF Screens & Awnings	United States	Retail	78		Sender Policy Framework (SPF)
emeis Belgium	Belgium	Hospitals and Health Care	442		Sender Policy Framework (SPF)
Sargent & Lundy	United States	Professional Services	4.7k		Sender Policy Framework (SPF)
Village n°1 Entreprises	Belgium	Consumer Services	95		Sender Policy Framework (SPF)
Micron Technology	United States	Semiconductor Manufacturing	48k	$18B	Sender Policy Framework (SPF)

Companies implementing Sender Policy Framework (SPF)

List of companies that implement Sender Policy Framework (SPF)