DKIM/SPF驗證

【DKIM/SPF驗證】檢測工具可以准確的檢測出的DKIM和SPF的設置是否通過Gmail，Hotmail，Yahoo的驗證。本網頁提供的微軟、谷歌及雅虎返回的DKIM檢測和SPF檢測的信息僅供參考。

請用被檢測的郵箱發送標題爲“DKIM/SPF Check Request”郵件到下面三個郵箱任何一個，過幾分鍾後刷新本網頁查看DKIM檢測結果。點擊DKIM和SPF驗證結果可以查看詳細的郵件服務器驗證信息(Authentication-Results)，Gmail、Hotmail及Yahoo對DKIM和SPF的檢測結果表述略有不同。

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最新DKIM/SPF檢測結果

被驗證郵箱	驗證時間(EST)	驗證服務器	DKIM驗證結果	SPF驗證結果
ji*@js*.com	9/20/2022 9:48:29 PM	Yahoo	Pass atlas116.free.mail.bf1.yahoo.com; dkim=pass header.i=@js*.com header.s=fjdq2209; spf=pass smtp.mailfrom=js.com; dmarc=unknown header.from=js**.com;	Pass pass (domain of js*.com designates 54..**.34 as permitted sender)
sh*@ho*.com	9/20/2022 5:32:09 AM	Yahoo	Pass atlas321.free.mail.bf1.yahoo.com; dkim=pass header.i=@ho*.com header.s=hoshiroko; spf=pass smtp.mailfrom=ho.com; dmarc=pass(p=NONE) header.from=ho**.com;	Pass pass (domain of ho*.com designates 159..**.35 as permitted sender)
m_*@po*.com	8/25/2022 1:41:13 AM	Yahoo	Fail atlas-production.v2-mail-prod1-gq1.omega.yahoo.com; dkim=perm_fail header.i=@po*.com header.s=57ACE4F8-13C1-11ED-84CB-2B35F5F1268C; spf=pass smtp.mailfrom=po.com; dmarc=pass(p=NONE) header.from=po**.com;	Pass pass (domain of po*.com designates 60..**.53 as permitted sender)
we*@po*.com	8/25/2022 1:38:19 AM	Yahoo	Pass atlas225.free.mail.ne1.yahoo.com; dkim=pass header.i=@pouchen.onmicrosoft.com header.s=selector2-pouchen-onmicrosoft-com; spf=pass smtp.mailfrom=po*.com; dmarc=pass(p=NONE) header.from=po*.com;	Pass pass (domain of po*.com designates 40..**.63 as permitted sender)
le*@le*.tk	8/22/2022 10:18:55 AM	Yahoo	Fail atlas310.free.mail.ne1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=le*.tk; dmarc=unknown header.from=le*.tk;	Pass pass (domain of le*.tk designates 185..**.22 as permitted sender)
ho*@yu*.com	8/16/2022 8:32:45 PM	Yahoo	Pass atlas118.free.mail.bf1.yahoo.com; dkim=pass header.i=@yu*.com header.s=dkim; spf=pass smtp.mailfrom=yu.com; dmarc=unknown header.from=yu**.com;	Pass pass (domain of yu*.com designates 162..**.118 as permitted sender)
ev*@gm*.com	8/13/2022 10:49:27 PM	Yahoo	Pass atlas318.free.mail.bf1.yahoo.com; dkim=pass header.i=@gm*.com header.s=20210112; spf=pass smtp.mailfrom=gm.com; dmarc=pass(p=NONE,sp=QUARANTINE) header.from=gm**.com;	Pass pass (domain of gm*.com designates 209..**.48 as permitted sender)
el*@ic*.com.hk	8/8/2022 2:36:46 AM	Yahoo	Fail atlas202.free.mail.gq1.yahoo.com; dkim=perm_fail header.i=@ic*.hk header.s=ICS; spf=pass smtp.mailfrom=ic.hk; dmarc=unknown header.from=ic**.hk;	Pass pass (domain of ic*.hk designates 123..**.48 as permitted sender)
wu*@fj*.com	7/27/2022 5:01:54 AM	Hotmail	Pass spf=pass (sender IP is 47...132) smtp.mailfrom=fj*.com; dkim=pass (signature was verified) header.d=fj.com;dmarc=permerror action=none header.from=fj**.com;compauth=pass reason=111	Pass Pass (protection.outlook.com: domain of fj*.com designates 47...132 as permitted sender) receiver=protection.outlook.com; client-ip=47..**.132; helo=us21.cn4e.com; pr=C

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如果你對DKIM和SPF的驗證信息有任何疑問，請發郵件給我們，我們會及時處理。

DKIM由互聯網工程任務組（IETF）開發而成；針對的目標是互聯網最嚴重的威脅之一：電子郵件欺詐。DKIM的基本工作原理同樣是基于傳統的密鑰認證方式，他會産生兩組鑰匙，公鑰(public key)和私鑰(private key)，公鑰將會存放在DNS中，而私鑰會存放在寄信服務器中。私鑰會自動産生，並依附在郵件頭中，發送到寄信者的服務器裏。公鑰則放在DNS服務器上，供自動獲得。收信的服務器，將會收到夾帶在郵件頭中的私鑰和在DNS上自己獲取公鑰，然後進行比對，比較寄信者的域名是否合法，如果不合法，則判定爲垃圾郵件。

SPF是爲了防範垃圾郵件而提出來的一種DNS記錄類型，它是一種TXT類型的記錄，它用于登記某個域名擁有的用來外發郵件的所有IP地址。SPF的作用主要是反垃圾郵件，主要針對那些發信人僞造域名的垃圾郵件。

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被驗證郵箱	驗證時間(EST)	驗證服務器	DKIM驗證結果	SPF驗證結果
ji*@js*.com	9/20/2022 9:48:29 PM	Yahoo	Pass atlas116.free.mail.bf1.yahoo.com; dkim=pass header.i=@js*.com header.s=fjdq2209; spf=pass smtp.mailfrom=js.com; dmarc=unknown header.from=js**.com;	Pass pass (domain of js*.com designates 54..**.34 as permitted sender)
sh*@ho*.com	9/20/2022 5:32:09 AM	Yahoo	Pass atlas321.free.mail.bf1.yahoo.com; dkim=pass header.i=@ho*.com header.s=hoshiroko; spf=pass smtp.mailfrom=ho.com; dmarc=pass(p=NONE) header.from=ho**.com;	Pass pass (domain of ho*.com designates 159..**.35 as permitted sender)
m_*@po*.com	8/25/2022 1:41:13 AM	Yahoo	Fail atlas-production.v2-mail-prod1-gq1.omega.yahoo.com; dkim=perm_fail header.i=@po*.com header.s=57ACE4F8-13C1-11ED-84CB-2B35F5F1268C; spf=pass smtp.mailfrom=po.com; dmarc=pass(p=NONE) header.from=po**.com;	Pass pass (domain of po*.com designates 60..**.53 as permitted sender)
we*@po*.com	8/25/2022 1:38:19 AM	Yahoo	Pass atlas225.free.mail.ne1.yahoo.com; dkim=pass header.i=@pouchen.onmicrosoft.com header.s=selector2-pouchen-onmicrosoft-com; spf=pass smtp.mailfrom=po*.com; dmarc=pass(p=NONE) header.from=po*.com;	Pass pass (domain of po*.com designates 40..**.63 as permitted sender)
le*@le*.tk	8/22/2022 10:18:55 AM	Yahoo	Fail atlas310.free.mail.ne1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=le*.tk; dmarc=unknown header.from=le*.tk;	Pass pass (domain of le*.tk designates 185..**.22 as permitted sender)
ho*@yu*.com	8/16/2022 8:32:45 PM	Yahoo	Pass atlas118.free.mail.bf1.yahoo.com; dkim=pass header.i=@yu*.com header.s=dkim; spf=pass smtp.mailfrom=yu.com; dmarc=unknown header.from=yu**.com;	Pass pass (domain of yu*.com designates 162..**.118 as permitted sender)
ev*@gm*.com	8/13/2022 10:49:27 PM	Yahoo	Pass atlas318.free.mail.bf1.yahoo.com; dkim=pass header.i=@gm*.com header.s=20210112; spf=pass smtp.mailfrom=gm.com; dmarc=pass(p=NONE,sp=QUARANTINE) header.from=gm**.com;	Pass pass (domain of gm*.com designates 209..**.48 as permitted sender)
el*@ic*.com.hk	8/8/2022 2:36:46 AM	Yahoo	Fail atlas202.free.mail.gq1.yahoo.com; dkim=perm_fail header.i=@ic*.hk header.s=ICS; spf=pass smtp.mailfrom=ic.hk; dmarc=unknown header.from=ic**.hk;	Pass pass (domain of ic*.hk designates 123..**.48 as permitted sender)
wu*@fj*.com	7/27/2022 5:01:54 AM	Hotmail	Pass spf=pass (sender IP is 47...132) smtp.mailfrom=fj*.com; dkim=pass (signature was verified) header.d=fj.com;dmarc=permerror action=none header.from=fj**.com;compauth=pass reason=111	Pass Pass (protection.outlook.com: domain of fj*.com designates 47...132 as permitted sender) receiver=protection.outlook.com; client-ip=47..**.132; helo=us21.cn4e.com; pr=C