Commit 03761ede authored by Roland Shoemaker's avatar Roland Shoemaker
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net: don't reject null mx records 

Bypass hostname validity checking when a null mx record is returned as,
defined in RFC 7505.

Updates #46979

Change-Id: Ibe683bd6b47333a8ff30909fb2680ec8e10696ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/332094


Trust: Roland Shoemaker <roland@golang.org>
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: default avatarKatie Hockman <katie@golang.org>
parent 877688c8
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