Which port number is mapped to IMAP according to the material?

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Multiple Choice

Which port number is mapped to IMAP according to the material?

Explanation:
IMAP’s main role is email retrieval from a server, and its standard default port for unencrypted communication is 143. That’s why this item maps IMAP to 143—the material uses the conventional port assignment for that protocol. For contrast, 110 is used by POP3, 80 by HTTP, and 443 by HTTPS. (Note that IMAP over SSL uses a separate port, commonly 993, but the unencrypted standard remains 143.)

IMAP’s main role is email retrieval from a server, and its standard default port for unencrypted communication is 143. That’s why this item maps IMAP to 143—the material uses the conventional port assignment for that protocol. For contrast, 110 is used by POP3, 80 by HTTP, and 443 by HTTPS. (Note that IMAP over SSL uses a separate port, commonly 993, but the unencrypted standard remains 143.)

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