*メイルアドレス型
-[[Approved:領域]] ([[RFC1036]])

See also [[メイルアドレスを内容に持つ領域]]

*Message-ID 型
-[[Article-Updates:領域]] ([[son-of-RFC1036]])
-[[See-Also:領域]] ([[son-of-RFC1036]])
-[[Supersedes:領域]] ([[son-of-RFC1036]])

See also [[記事の識別子]]

**類似の識別子型

-[[Article-I.D.:領域]] ([[Bnews]])
-[[List-ID:領域]] ([[RFC2919]])

*日付型
-[[Expires:領域]]

See also [[日付形式]]

*ドメイン名型
-[[NNTP-Posting-Host:領域]]
-X-Original-NNTP-Posting-Host:領域

-[[Path:領域]] (列挙)
-[[Injector-Info:領域]] ([[draft-usefor-article]]) (パラメーター)

*URI 型
-[[Content-Alias:領域]] (作業中)
-[[Content-Base:領域]] ([[RFC2110]])
-[[Content-Location:領域]] ([[HTTP]], [[RFC2110]])
-[[Link:領域]] ([[HTTP]]) (パラメーター)
-[[List-*:(URI)領域]] ([[RFC2369]])
-[[Location:領域]] ([[HTTP]])
-[[Referer:領域]] ([[HTTP]])
-[[URI:領域]] ([[HTTP]])
-[[X-URI:領域と仲間達]] (X-Home-Page, X-MyPage, X-URI, X-URL, X-Web)

See also [[RFC2369]]

*新聞組型
-[[Followup-To:領域]] ([[RFC1036]])
-[[Newsgroups:領域]] ([[RFC1036]])

-[[Distribution:領域]] ([[RFC1036]])

*パラメータ型
-[[Archive:領域]] ([[draft-usefor-article]]) (yes/no)
-[[Auto-Submitted:領域]] (draft-ietf-mailext-new-fields)
-[[Content-Disposition:領域]] ([[MIME]], [[HTTP]])
-[[Content-Type:領域]] ([[MIME]], [[HTTP]], [[CGI]])
-[[Link:領域]] ([[HTTP]])
-[[Injector-Info:領域]] ([[draft-usefor-article]]) (パラメータ)
-[[Refresh:領域]]
-[[X-Face-Type:領域]] ([[X-Face]])

*コンマ区切り型
-[[CGI-Remove:領域]] ([[SIP-CGI]]) (1#field-name)
-[[Encrypted:領域]] ([[RFC822]]) (1#2word)
-[[Keywords:領域]] ([[RFC822]], [[RFC1036]]) (#word)

**コンマ区切りパラメーター型
-[[Accept:領域]] (#content-type)
-[[Accept-Charset:領域]] (#value-param)
-[[Accept-Encoding:領域]] (#value-param)
-[[Accept-Language:領域]] (#value-param)
-[[P3P:領域]] (#param)
-[[X-Accept-Language:領域]] (#value-param)
-[[X-Moe:領域と仲間達]] (X-Moe, X-Brother, X-Daughter, X-Husband, X-Maid, X-Respect, X-Sister, X-Wife) (#param)

*yes/no 型
-[[Archive:領域]] ([[draft-usefor-article]]) (パラメータ)
-[[Posted-And-Mailed:領域]] ([[draft-usefor-article]])
-[[Query-UTF-8:領域]] (<urn:ietf:id:draft-duerst-query-i18n-00.txt>)
-[[X-No-Archive:領域]]
-[[X-No-Vote:領域]]

*数値型
-[[Content-Duration:領域]] (draft-ietf-vpim-vpimv2r2-dur)
-[[Content-Length:領域]] ([[HTTP]])
-[[Lines:領域]] ([[RFC1036]])
-[[Max-Fowards:領域]] ([[HTTP]])
-[[MIME-Version:領域]] ([[MIME]]) (小数)

*token 型
-[[CGI-Request-Token:領域]] ([[SIP-CGI]])
-[[Message-Context:領域]] (draft-ietf-vpim-hint)

*その他の構造化領域
-[[Also-Control:領域]] ([[son-of-RFC1036]])
-[[Article-Names:領域]] ([[son-of-RFC1036]])
-[[Control:領域]] ([[RFC1036]], [[son-of-RFC1036]])
-[[Relay-Version:領域,Posting-Version:領域]] ([[RFC850]])
-[[XRef:領域]] ([[RFC1036]], [[son-of-RFC1036]])

**SEE ALSO
-[[RFC822と仲間達の頭領域名]]