Stopping Phishing Before It Reached the Inbox

The challenge

The company was seeing a rise in impersonation emails, malicious attachments and payment-related phishing attempts. Basic mailbox filtering was not giving management enough control or visibility, and users were increasingly unsure which messages were safe.

Our approach

Astek reviewed the mail flow, common threat patterns, user behaviour and existing domain settings before proposing a layered email-security design rather than simply replacing the mail platform.

What Astek implemented

• Configured secure email filtering with anti-spam, anti-phishing and attachment inspection.
• Strengthened domain authentication and sender-verification controls.
• Created policies for suspicious URLs, spoofing and high-risk attachments.
• Introduced administrator reporting and a simple escalation process for suspicious messages.
• Shared practical user guidance for identifying impersonation and payment fraud attempts.

Business outcome

The organisation gained a controlled mail-security layer, clearer visibility into threats and a repeatable process for handling suspicious messages. Users could continue working on their existing email platform while the security layer operated around it.