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Consider an email sent from

From: "John William" <>
Cc:,, ...

Note that the header did never mentioned at all. Do main-stream spam-filters block this kind of mail, who claim that it is from but sent from If they do, is there any workaround I can do to avoid frequently being filtered? (I don't own the SMTP server) Thanks.

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if you set and SPF record, I think you can pass spam filtering.

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