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A comment on What's an SPF Record?. Parent comment

Re:What's an SPF Record? by brightball on Tuesday February 09, 2021 @07:55PM (#26084594)
You can fix this by putting a single SPF entry for each envelope/returnpath domain. SPF scales smoothly that way without any need to overload a single top level record with entries. This will pass DMARC as well.

Very common issue.

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