Dinesh Mistry

Dinesh is Optik Security's Founder and CEO, he has spent more than 20 years in information security. Dinesh founded Optik Security in 2020.

What is MTA-STS

MTA-STS explained

Google recently announced that they made email more secure by adopting the new MTA-STS internet standard. But what is MTA-STS and how does it (somewhat) improve email security? What is MTA-STS and what is it for? Google announced that they made email more secure by adopting the new MTA-STS internet standard (RFC8461). A lot of …

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What is DMARC?

DMARC stands for Domain-based Message Authentication, Reporting and Conformance. It in fact sits on top of SPF and DKIM. What DMARC brings to the table is the ability control, test and monitor the emails that are received, blocked or quarantined. It also enables the sender to receive feedback as to why their message was blocked. …

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What is SPF?

What is SPF?

The Sender Policy Framework (SPF) is an email-authentication technique which is used to prevent spammers from sending messages on behalf of your domain. With SPF an organization can publish authorized mail servers. Together with the DMARC related information, this gives the receiver (or receiving systems) information on how trustworthy the origin of an email is. …

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What is DKIM?

What is DKIM?

DomainKeys Identified Mail (DKIM) is the most complicated email authentication protocol out there. Even if you do extensive research, it’s hard to find one place that describes how it all works. That’s why we’re breaking it down in the second post of a three-part series that explains SPF, DKIM, and DMARC in plain English What …

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