Secure Email Gateway

Email Threat Protection: How Businesses Defend Against Modern Email Attacks

July 31, 2026 / in Blog / by Zafar Khan, RPost CEO

Modern Email Security Must Protect the Inbox, the Sender, the Transaction, and the Content After Delivery.

Email attacks are no longer arriving as obvious spam or malware. Some attacks contain no malicious attachment; rather, they rely on trust, urgency, payment context, and normal business behavior. For instance, a convincing message may imitate an executive, use a supplier’s compromised account, continue an existing conversation, or persuade an employee to send sensitive information to the wrong person.

The Role of AI in Modern Email Security

April 17, 2026 / in Blog / by Zafar Khan, RPost CEO

How AI is Strengthening Email Security Beyond Static Rules.

Just a year or so ago, email security was mostly about blocking what looked obviously bad, such as known malicious links, suspicious attachments, spoofed domains, and spammy language. All of that is still relevant, but today’s attacks often look normal, timely, and believable with AI. And it’s why AI itself has become critical in email security.

Business Email Compromise Attacks in Many Ways

October 07, 2022 / in Blog / by Zafar Khan, RPost CEO

Business Email Compromise Cybercriminal Lures Attack in Many Ways, Like a Hydra Monster with Many Heads. Each Attack Vector Needs a Defense. Enter RMail. Before we start today’s article, we’d like to ensure you have heard about – and been invited to – RPost’s Optimize!2022 global e-security and eSign user conference (click here to read […]