SPF: security for your email

To protect your email from cyber attacks, you must be able to identify the sender. This is where a security feature known as SPF comes into play.

In this article we will explain what it is and why you should care about it. Let us begin:

What is SPF?

The Sender Policy Framework is an email security protocol that allows the identity of senders to be verified.

This is divided into two parts:

A  DNS TXT/SPF record : which indicates which servers are authorized to send emails from a given domain.

The  ​SPF check ​: is the verification that is done on receiving a message and that checks if the server that has sent the message is indeed the one that the DNS record marks as authorized.

Therefore, the configuration of the DNS TXT/SPF record allows  sending mail  to be correctly signed , while the  SPF check consists of discriminating  received mail . 

How does SPF work ?

The SPF check checks that the sending server is authorized to send mail on behalf of the domain.

It works at various levels, based on the DNS TXT/SPF record:

1.- Verify that the sender IP is authorized to send emails with said domain.
2.- Verify the  email enveloper sender field  matches the expected value.
3.- Verify by means of the helo/ehlo command the valid response from the server that sends the mail.

If the set of checks does not match, the email is blocked. All received emails have a header added with the result of the SPF analysis.

Now, how do we find out the IP addresses of the sender’s email server? We do this by checking the SPF record of the sender’s domain name.

SPF record

In  cdmon  this default log looks like this:

v=spf1 include:_spf.srv.cat ~all

At first glance, this does not seem to include any IP addresses, but if we analyze it with a specialized tool, it indicates the IPs from which a  cdmon user  can send messages:

This means that if a  cdmon user  works with the default SPF record, they will be able to send messages from any of these IPs:

46.16.56.0/21
134.0.8.0/21
185.22.200.0/22
​​185.34.192.0/22
​​185.42.104.0/22
​​185.66.40.0/22

In case of working with more than one mail service (such as a mailing service such as Acumba or Mailchimp), it will be necessary to add their servers as authorized hosts for sending.

Remember that you can only have a single SPF record, so if you have to make this change, we recommend that you follow the steps indicated in our guide to  configure it for mail in the static DNS  or follow the instructions in the following video:

But why do we need email security?

Email is convenient and easy to use, but it’s also open to cyberattacks and other threats. Email security is the way to protect your account and prevent spam emails from others.

This can prevent scams and phishing attacks that can steal your information. Also, knowing the identity of the sender can protect you from spoofed emails and people pretending to be someone else.

With SPF, you can feel more confident that your email account is protected.

Google Cloud and C3 AI partner to provide industry solutions that will address real-world challenges in financial services, healthcare, manufacturing, supply chain, and telecommunications

REDWOOD CITY, Calif. and SUNNYVALE, Calif.Sept. 1, 2021 /PRNewswire/ — C3 AI and Google Cloud today announced a new, first-of-its-kind partnership to help organizations across multiple industries accelerate their application of artificial intelligence (AI) solutions. Under the agreement, both companies’ global sales teams will co-sell C3 AI’s enterprise AI applications, running on Google Cloud.

The entire portfolio of C3 AI’s Enterprise AI applications, including industry-specific AI Applications, C3 AI Suite®, C3 AI CRM, and C3 AI Ex Machina, are now available on Google Cloud’s global, secure, and low-latency infrastructure, enabling customers to run C3 AI on the industry’s cleanest cloud.

Going forward, C3 AI will also work closely with Google Cloud to ensure that its applications fully leverage the accuracy and scale of multiple Google Cloud products and capabilities, including Google Kubernetes Engine, Google BigQuery, and Vertex AI, helping customers build and deploy ML models more quickly and effectively.

C3 AI’s enterprise AI applications, built on a common foundation of Google Cloud’s infrastructure, AI, machine learning (ML) and data analytics capabilities, will complement and interoperate with Google Cloud’s portfolio of existing and future industry solutions. Customers will be able to deploy combined offerings to solve industry challenges in several verticals, including:

  • Manufacturing: Solutions to improve reliability of assets and fleets with AI-powered predictive maintenance, improve revenue and product forecasting accuracy, and improve the sustainability of manufacturing facilities and operations through optimized energy management.
  • Supply Chain & Logistics: Solutions to help supply-chain reliant businesses understand risks in their supply networks, maximize resilience, and optimize inventory accordingly.
  • Financial Services: Solutions to assist financial services institutions in modernizing their cash management offerings, improve lending processes, and reduce customer churn.
  • Healthcare: Solutions to improve the availability of critical healthcare equipment via AI-powered asset readiness and preventative maintenance.
  • Telecommunications: Solutions to improve network resiliency and overall customer experience, while reducing costs and the carbon footprint of operations.

“Combining the innovation, leadership, scale, and go-to-market expertise of Google Cloud with the substantial business value delivered from C3 AI applications, this partnership will dramatically accelerate the adoption of Enterprise AI applications across all industry segments,” said Thomas M. Siebel, C3.ai CEO.

“Google Cloud and C3 AI share the vision that artificial intelligence can help businesses address real-world challenges and opportunities across multiple industries,” said Thomas Kurian, CEO at Google Cloud. “We believe that by delivering C3 AI’s applications on Google Cloud, and by partnering to address specific industry use cases with AI, we can help customers benefit more quickly and at greater scale.”

“Organizations across industries are accelerating their digital transformations with cloud-based solutions, purpose-built to deliver specific business outcomes,” said Ritu Jyoti, group vice president, AI and Automation Research at IDC. “This new partnership between C3 AI and Google Cloud represents an acceleration of this trend, as the two companies partner to expand the application of AI-powered solutions in the enterprise.”

“This is fundamentally game-changing for the hyperscale computing market,” said Jim Snabe, former co-CEO, SAP AG. “Google Cloud is changing the competitive discussion from CPU seconds and gigabyte-hours, to enterprise AI applications producing enormous value for customers, shareholders, and society at large.”

Additional resources

About C3.ai, Inc.
C3.ai, Inc. (NYSE:AI) is a leading provider of Enterprise AI software for accelerating digital transformation. C3 AI delivers a family of fully integrated products: C3 AI Suite, an end-to-end platform for developing, deploying, and operating large-scale AI applications; C3 AI Applications, a portfolio of industry-specific SaaS AI applications; C3 AI CRM, a suite of industry-specific AI CRM applications; and C3 AI Ex Machina, a no-code AI solution to meet the needs of citizen data scientists. Learn more at: www.c3.ai.

About Google Cloud
Google Cloud accelerates organizations’ ability to digitally transform their business with the best infrastructure, platform, industry solutions and expertise. We deliver enterprise-grade solutions that leverage Google’s cutting-edge technology – all on the cleanest cloud in the industry. Customers in more than 200 countries and territories turn to Google Cloud as their trusted partner to enable growth and solve their most critical business problems.

 

SOURCE Google Cloud

For further information: press@google.com; or C3 AI Public Relations: Edelman, Lisa Kennedy, 415-914-8336, pr@c3.ai