CAA contactemail 屬性標籤

CAA contactemail Property

SYNTAX: contactemail <rfc6532emailaddress>

語法：contactemail <rfc6532emailaddress>

The CAA contactemail property takes an email address as its parameter. The entire parameter value MUST be a valid email address as defined in RFC 6532, Section 3.2, with no additional padding or structure, or it cannot be used.

CAA contactemail 屬性接受電子郵件地址作為其參數。整個參數值應（MUST）為 RFC 6532 第 3.2 節 所定義的有效電子郵件地址，且不得包含任何額外字元或結構，否則不得使用。

The following is an example where the holder of the domain specified the contact property using an email address.

以下為網域名稱持有人使用電子郵件地址指定聯絡屬性之範例。

$ORIGIN example.com .
CAA 0 contactemail "domainowner@example.com"

The contactemail property MAY be critical, if the domain owner does not want CAs who do not understand it to issue certificates for the domain.

若網域名稱擁有者不希望無法解析 contactemail 屬性的憑證機構（CA）對該網域名稱簽發憑證，contactemail 屬性得（MAY）設為關鍵（critical）。