Which RFC defines the mailto URI scheme used for email links?
Answer
RFC 6068
79 Email Trivia Questions with Answers
79 public questions with answers, drawn from the well. How many can you answer?
Email trivia spans the standards, protocols, software, and conventions behind electronic messaging. Questions may test technical knowledge—such as RFC 6068, which defines the mailto URI scheme, or SMTP commands used to identify an envelope sender—as well as the history of familiar email clients and webmail services.
This hub suits IT students, software professionals, technology fans, and quiz teams that enjoy practical computing history. It covers SMTP, SPF, LMTP, email headers, PHP-based webmail, Microsoft Office, and open-source desktop clients such as those developed by KDE. The mix ranges from recognizable product history to details likely to challenge experienced administrators.
Which Microsoft email client first appeared as part of Microsoft Office 97?
Answer
Microsoft Outlook
Which email protocol's name is commonly shortened to LMTP?
Answer
Local Mail Transfer Protocol
Which email authentication RFC number defines SPF?
Answer
RFC 7208
Which free webmail application is written in PHP and released under the GNU GPL?
Answer
SquirrelMail
Which email client was developed by the KDE project?
Answer
KMail
Which email service did Yahoo acquire in 1997 for about $92 million?
Answer
RocketMail
What email client was originally codenamed Minotaur?
Answer
Mozilla Thunderbird
Which email header field contains the message's title line?
Answer
Subject
What TCP port is used for POP3 over SSL/TLS?
Answer
995
What does POP stand for in the email protocol POP3?
Answer
Post Office Protocol
What is the minimum message size a server must accept per RFC 5321?
Answer
64 kilobytes
What is the maximum line length allowed in an email message per RFC 5322?
Answer
998 characters
What protocol is commonly used by mobile devices to push email notifications from Microsoft Exchange?
Answer
Exchange ActiveSync
What was the name of Microsoft's email client included with Internet Explorer 4?
Answer
Outlook Express
In what year was Gmail launched to the public?
Answer
2004
What does the abbreviation BCC stand for in an email header?
Answer
Blind Carbon Copy
What does the acronym SMTP stand for in email protocols?
Answer
Simple Mail Transfer Protocol
What company acquired the Eudora email client in 1991?
Answer
Qualcomm
What RFC number defines the IMAP protocol?
Answer
RFC 3501
What year did the first email spam occur?
Answer
1978
Email trivia — quick answers
What are good email trivia questions?
Good email trivia questions combine everyday concepts with technical history. Examples include identifying the RFC for the mailto scheme, naming the SMTP command that specifies an envelope sender, recognizing the header for primary recipients, and matching email clients or webmail applications to the organizations and technologies behind them.
How hard is email trivia?
Email trivia is usually medium to difficult. Basic questions about headers, clients, and webmail are approachable, while questions about RFC numbers, SMTP behavior, authentication standards, and less familiar protocols such as LMTP reward people with networking or email-administration experience.
Which RFC defines the mailto URI scheme?
RFC 6068 defines the current mailto URI scheme used to create email links. It updates the earlier specification in RFC 2368 and describes how email addresses and optional headers can be represented in a URI. A link such as mailto:[email protected] can therefore open a user's configured mail application.
What does SPF stand for in email?
SPF stands for Sender Policy Framework. It is an email-authentication system in which a domain publishes DNS records listing the servers authorized to send mail for that domain. Receiving systems can compare the sending server with that policy, helping detect forged envelope-sender addresses and reduce spam and phishing.
What is LMTP?
LMTP, or Local Mail Transfer Protocol, is a mail-delivery protocol derived from SMTP and designed for delivery to local message stores. It is commonly used between a mail transfer agent and a local delivery system. Unlike ordinary SMTP, LMTP can report delivery status separately for each recipient in a transaction.