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Difficulty: EasyMobile Application Support and Security Settings

A IT technician is configuring a mobile device to receive corporate email using the IMAP protocol. The company's security policy requires all incoming email traffic to be encrypted using SSL/TLS. Which port number should the technician specify in the incoming mail server settings?

  1. 993Answer
  2. B
    143
  3. C
    995
  4. D
    465

Answer

Port 993 is the correct port number for secure IMAP (IMAPS) using SSL/TLS encryption.
Port 993 is the standard well-known port for IMAP traffic encrypted with SSL/TLS (IMAPS). Specifying this port ensures that mobile incoming mail communication is fully encrypted in compliance with corporate security policy.

Step-by-Step Solution

1
Identify the requested protocol and security requirement
The requirement specifies incoming email synchronization via IMAP with SSL/TLS encryption.
Different email protocols and security levels use standard dedicated TCP port numbers.
2
Match the protocol and encryption requirement to standard TCP ports
Unencrypted IMAP uses port 143, while IMAP over SSL/TLS (IMAPS) uses port 993.
Configuring port 993 enforces encrypted communication between the mobile client and the mail server.

Key Concept

Mobile Email Security and Port Configurations
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Topics

Mobile Application Support and Security Settings

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