Unverified50% confidenceSolutionExact time
多邮箱分散发送可降低单一域名发送风险、提升送达率，但每个邮箱需经过充分预热，新域名通常需要2-4周预热期
1
Sources
50%
Confidence
Long-term
Relevance
8/11/2026
First Seen
Sources
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https://kongchang.com/claim/731144API
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get_claim(id=731144)