Overview

This article provides information on how to resolve an issue with incoming emails not being received by Kerio Connect installed on macOS.

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Prerequisites

Install Kerio Connect on macOS

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Root Cause

The built-in macOS firewall is blocking all incoming connections, thus preventing the reception of all incoming external emails.

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Resolution

1. Open the Apple menu  > System Preferences > Security & Privacy > Firewall.

2. Click the lock to make changes.

   

3. Choose Firewall Options.

4. Allow Kerio Connect incoming connections and disable Stealth Mode (by unchecking the "Enable stealth mode" option). Click OK.

   

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Confirmation

Kerio Connect is successfully receiving external emails.

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