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Wez Furlong
21 lines
610 B
Markdown
21 lines
610 B
Markdown
# iprev_msg
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{{since('2025.12.02-67ee9e96')}}
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```lua
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local mail_auth = require 'policy-extras.mail_auth'
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local auth_result = mail_auth.iprev(MSG)
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```
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The `mail_auth.iprev` function performs the `iprev` authentication method [as
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specified by RFC8601 Section
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3](https://datatracker.ietf.org/doc/html/rfc8601#section-3), and returns an
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[AuthenticationResult](../authenticationresult.md) representing the status of
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the check.
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The `MSG` parameter is a [Message](../message/index.md) object.
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See [mail_auth.iprev](iprev.md) for a version of this check at accepts
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an IP address without needing a message object.
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