35 lines
869 B
Markdown
35 lines
869 B
Markdown
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## ZONE08: MX is not an alias
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### Test case identifier
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**ZONE08** MX is not an alias
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### Objective
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An MX type record for a domain must not resolve to a CNAME, following
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the text in section 10.3 of [RFC 2181](https://datatracker.ietf.org/doc/html/rfc2181)
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and section 2.3.5 in
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[RFC 5321](https://datatracker.ietf.org/doc/html/rfc5321#section-2.3.5).
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### Inputs
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The domain name to be tested.
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### Ordered description of steps to be taken to execute the test case
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1. Query the MX record from a delegated name server for the domain.
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2. If the answer from step 1 is not authoritative, iterate step 1 until there is an authoritative answer.
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3. If the MX answer is a CNAME, this test case fails.
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### Outcome(s)
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If the MX record for the domain is pointing to a CNAME, this test case
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fails.
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### Special procedural requirements
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None.
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### Intercase dependencies
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None.
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