A 2020 study by Varonis found that 94% of malware is delivered by email.
With communication becoming ever increasingly digital, ensuring that those lines of communication stay secure and do not open pathways for threat actors to infiltrate, exploit, and destroy company or financial data is more important than ever.
Email security uses different types of technology to inspect incoming emails for malicious threats and quarantines them before they are able to be executed. Secure Email Gateways protect businesses from spam, viruses, malware and denial of service attacks. The gateway scans all incoming and internal email communications, including attachments and URLs for signs of malicious or harmful content. It also secures outbound email to not only protect recipients, but to protect the sender reputation of the business so that the business email is not blacklisted for negative activities.
As companies migrate to more cloud or hybrid email platforms, cloud based email security is also becoming increasingly important. Secure Email Gateways provide pre-delivery protection by blocking email based threats before they can reach a cloud based email server. Having the right email security strategy/solution in place is essential in today’s business landscape protecting against both incoming and outgoing threats.
Email and DNS
To better protect email identity and sender authority, there are 3 security protocols that can be configured through DNS.
Sender Policy Framework (SPF) hardens your DNS servers and restricts who can send email from your domain.
DomainKeys Identified Mail (DKIM) ensures that the content of your emails remains trusted and hasn’t been tampered with or compromised.
Domain-based Message Authentication, Reporting and Conformance (DMARC) ties the first two protocols together with a consistent set of policies.