Expired50% confidenceFactTime unknown
Gmail created a massive social transmission effect through its invitation code mechanism in 2004.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Related Claims
UnverifiedGmail于2004年公测上线，以1GB存储空间和搜索功能作为差异化卖点67% similarVerifiedGmail's plus alias feature (e.g., yourname+tag@gmail.com) has been recognized and blocked by many services.62% similarUnverifiedGmail's fault-tolerant address design reflects the Robustness Principle (Postel's Law)—be liberal in what you accept and conservative in what you send—reducing email loss due to typos but introducing false-positive delivery problems.61% similarUnverifiedGmail implemented new sender guidelines in February 2024, requiring senders who send more than 5,000 emails per day to Gmail users to simultaneously configure SPF, DKIM, and DMARC, with a spam complaint rate not exceeding 0.3%.59% similarUnverifiedGmail's many-to-one address normalization mapping is mathematically called a surjection, which fundamentally eliminates the possibility of distinguishing different users through address variants.59% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/61012API
curl https://kongchang.com/api/v1/knowledge/claims/61012MCP
get_claim(id=61012)