DKIM/SPF验证

【DKIM/SPF验证】检测工具可以准确的检测出的DKIM和SPF的设置是否通过Gmail，Hotmail，Yahoo的验证。本网页提供的微软、谷歌及雅虎返回的DKIM检测和SPF检测的信息仅供参考。

请用被检测的邮箱发送标题为“DKIM/SPF Check Request”邮件到下面三个邮箱任何一个，过几分钟后刷新本网页查看DKIM检测结果。点击DKIM和SPF验证结果可以查看详细的邮件服务器验证信息(Authentication-Results)，Gmail、Hotmail及Yahoo对DKIM和SPF的检测结果表述略有不同。

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最新DKIM/SPF检测结果

被验证邮箱	验证时间(EST)	验证服务器	DKIM验证结果	SPF验证结果
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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如果你对DKIM和SPF的验证信息有任何疑问，请发邮件给我们，我们会及时处理。

DKIM由互联网工程任务组（IETF）开发而成；针对的目标是互联网最严重的威胁之一：电子邮件欺诈。DKIM的基本工作原理同样是基于传统的密钥认证方式，他会产生两组钥匙，公钥(public key)和私钥(private key)，公钥将会存放在DNS中，而私钥会存放在寄信服务器中。私钥会自动产生，并依附在邮件头中，发送到寄信者的服务器里。公钥则放在DNS服务器上，供自动获得。收信的服务器，将会收到夹带在邮件头中的私钥和在DNS上自己获取公钥，然后进行比对，比较寄信者的域名是否合法，如果不合法，则判定为垃圾邮件。

SPF是为了防范垃圾邮件而提出来的一种DNS记录类型，它是一种TXT类型的记录，它用于登记某个域名拥有的用来外发邮件的所有IP地址。SPF的作用主要是反垃圾邮件，主要针对那些发信人伪造域名的垃圾邮件。

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被验证邮箱	验证时间(EST)	验证服务器	DKIM验证结果	SPF验证结果
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