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200-201 · Question #347
What is email greylisting by the mail transfer agent?
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Submitted by omar99· Mar 6, 2026Security Concepts
Question
What is email greylisting by the mail transfer agent?
Options
- Adenying any email from a sender it does not recognize
- Breturning emails that are potential phishing attempts
- Callowing emails from unknown senders temporarily
- Dquarantining emails sent from outside of the organization
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Topics
#email security#greylisting#MTA#spam prevention