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SMTP stands for Simple Mail Transfer Protocol, and it is a protocol used for sending emails across the Internet. Among the statements below, choose the one that is incorrect regarding SMTP:
1. SMTP can only send text-based messages and cannot handle attachments. – This statement is incorrect. SMTP itself is primarily designed for sending text messages, but it can send attachments by using multipurpose Internet mail extensions (MIME). MIME encodes the non-text data as text, which allows SMTP to transfer data such as attachments.
2. SMTP uses port 25 for communication. – This statement is correct. SMTP traditionally uses port 25 for communication between mail servers.
3. SMTP is a push protocol. – This statement is correct. SMTP is used to “push” emails from the sender’s to the recipient’s mail server.
4. SMTP is used for both sending and receiving emails. – This statement is incorrect in the context that SMTP is primarily used for sending emails. For receiving emails, protocols such as POP3 (Post Office Protocol 3) or IMAP (Internet Message Access Protocol) are used.
5. SMTP requires the use of SSL/TLS for encrypted communication. – This statement can be considered partly incorrect as it suggests a requirement. While SMTP itself does not inherently require SSL/TLS for encrypted communication, it is highly recommended and often required by email service providers for securing email transmissions. The protocol used for securely sending email via SMTP is often referred to