Unverified50% confidenceFactExact time
In crontab, /dev/null is often used as a placeholder to suppress email notifications.
1
Sources
50%
Confidence
Long-term
Relevance
10/16/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedCRM deduplication checks typically use email address as the unique identifier.70% similarUnverified邮件头注入通过插入CRLF字符追加额外邮件头，属于逻辑推断型漏洞，无法通过简单Payload枚举发现62% similarUnverified邮件头注入是一种服务端注入漏洞，当Web应用将用户输入未经过滤拼接进邮件头时，攻击者可通过插入CRLF进行攻击61% similarUnverifiedTo truly make a mailbox non-replyable, enterprises can configure rejection rules at the MTA level, set the address as an alias pointing to /dev/null, or configure an automatic bounce reply.60% similarUnverifiedIn an n8n workflow, when the CRM node receives an invalidly formatted email, it returns a bad request and causes the entire run to abort.59% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/1047690API
curl https://kongchang.com/api/v1/knowledge/claims/1047690MCP
get_claim(id=1047690)