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
te*@fa*.co	9/23/2021 4:45:36 AM	Yahoo	Fail atlas318.free.mail.ne1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=fa*.co; dmarc=pass(p=QUARANTINE) header.from=fa*.co;	Pass pass (domain of fa*.co designates 45..**.18 as permitted sender)
a@*@ba*.com	9/19/2021 8:24:18 PM	Yahoo	Pass atlas204.free.mail.ne1.yahoo.com; dkim=pass header.i=@ba*.com header.s=hmail; spf=pass smtp.mailfrom=ba.com; dmarc=unknown header.from=ba**.com;	Pass pass (domain of ba*.com designates 205..**.97 as permitted sender)
a@*@ba*.com	9/19/2021 8:23:26 PM	Gmail	Pass dkim=pass header.i=@ba*.com header.s=hmail header.b=TLntbx3Y; spf=pass (domain of a@@ba.com designates 205...97 as permitted sender) smtp.mailfrom=a@@ba**.com	Pass pass (domain of a@*@ba.com designates 205...97 as permitted sender) client-ip=205..*.97;
a@*@ba*.com	9/19/2021 10:47:40 AM	Gmail	Pass dkim=pass header.i=@ba*.com header.s=hmail header.b=CxWCWR3z; spf=pass (domain of a@@ba.com designates 205...97 as permitted sender) smtp.mailfrom=a@@ba**.com	Pass pass (domain of a@*@ba.com designates 205...97 as permitted sender) client-ip=205..*.97;
ww*@zj*.com	9/19/2021 10:06:45 AM	Gmail	Pass dkim=pass header.i=@zj*.com header.s=hmail header.b=EffC628v; spf=pass (domain of ww@zj.com designates 172...102 as permitted sender) smtp.mailfrom=ww@zj**.com	Pass pass (domain of ww*@zj.com designates 172...102 as permitted sender) client-ip=172..*.102;
ww*@zj*.com	9/19/2021 9:58:10 AM	Gmail	Fail dkim=neutral (bad format) header.i=@zj*.com header.s=hmail header.b=io8ZVBXE; spf=pass (domain of ww@zj.com designates 172...102 as permitted sender) smtp.mailfrom=ww@zj**.com	Pass pass (domain of ww*@zj.com designates 172...102 as permitted sender) client-ip=172..*.102;
ww*@zj*.com	9/19/2021 9:53:10 AM	Gmail	Fail dkim=neutral (bad format) header.i=@zj*.com header.s=hmail header.b=IszL4DTJ; spf=pass (domain of ww@zj.com designates 172...102 as permitted sender) smtp.mailfrom=ww@zj**.com	Pass pass (domain of ww*@zj.com designates 172...102 as permitted sender) client-ip=172..*.102;
ww*@zj*.com	9/19/2021 9:52:18 AM	Gmail	Fail dkim=neutral (bad format) header.i=@zj*.com header.s=hmail header.b=PWLzUIVV; spf=pass (domain of ww@zj.com designates 172...102 as permitted sender) smtp.mailfrom=ww@zj**.com	Pass pass (domain of ww*@zj.com designates 172...102 as permitted sender) client-ip=172..*.102;
ww*@zj*.com	9/19/2021 9:49:18 AM	Gmail	Fail dkim=neutral (bad format) header.i=@zj*.com header.s=hmail header.b=zIZpAWE2; spf=pass (domain of ww@zj.com designates 172...102 as permitted sender) smtp.mailfrom=ww@zj**.com	Pass pass (domain of ww*@zj.com designates 172...102 as permitted sender) client-ip=172..*.102;

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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
te*@fa*.co	9/23/2021 4:45:36 AM	Yahoo	Fail atlas318.free.mail.ne1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=fa*.co; dmarc=pass(p=QUARANTINE) header.from=fa*.co;	Pass pass (domain of fa*.co designates 45..**.18 as permitted sender)
a@*@ba*.com	9/19/2021 8:24:18 PM	Yahoo	Pass atlas204.free.mail.ne1.yahoo.com; dkim=pass header.i=@ba*.com header.s=hmail; spf=pass smtp.mailfrom=ba.com; dmarc=unknown header.from=ba**.com;	Pass pass (domain of ba*.com designates 205..**.97 as permitted sender)
a@*@ba*.com	9/19/2021 8:23:26 PM	Gmail	Pass dkim=pass header.i=@ba*.com header.s=hmail header.b=TLntbx3Y; spf=pass (domain of a@@ba.com designates 205...97 as permitted sender) smtp.mailfrom=a@@ba**.com	Pass pass (domain of a@*@ba.com designates 205...97 as permitted sender) client-ip=205..*.97;
a@*@ba*.com	9/19/2021 10:47:40 AM	Gmail	Pass dkim=pass header.i=@ba*.com header.s=hmail header.b=CxWCWR3z; spf=pass (domain of a@@ba.com designates 205...97 as permitted sender) smtp.mailfrom=a@@ba**.com	Pass pass (domain of a@*@ba.com designates 205...97 as permitted sender) client-ip=205..*.97;
ww*@zj*.com	9/19/2021 10:06:45 AM	Gmail	Pass dkim=pass header.i=@zj*.com header.s=hmail header.b=EffC628v; spf=pass (domain of ww@zj.com designates 172...102 as permitted sender) smtp.mailfrom=ww@zj**.com	Pass pass (domain of ww*@zj.com designates 172...102 as permitted sender) client-ip=172..*.102;
ww*@zj*.com	9/19/2021 9:58:10 AM	Gmail	Fail dkim=neutral (bad format) header.i=@zj*.com header.s=hmail header.b=io8ZVBXE; spf=pass (domain of ww@zj.com designates 172...102 as permitted sender) smtp.mailfrom=ww@zj**.com	Pass pass (domain of ww*@zj.com designates 172...102 as permitted sender) client-ip=172..*.102;
ww*@zj*.com	9/19/2021 9:53:10 AM	Gmail	Fail dkim=neutral (bad format) header.i=@zj*.com header.s=hmail header.b=IszL4DTJ; spf=pass (domain of ww@zj.com designates 172...102 as permitted sender) smtp.mailfrom=ww@zj**.com	Pass pass (domain of ww*@zj.com designates 172...102 as permitted sender) client-ip=172..*.102;
ww*@zj*.com	9/19/2021 9:52:18 AM	Gmail	Fail dkim=neutral (bad format) header.i=@zj*.com header.s=hmail header.b=PWLzUIVV; spf=pass (domain of ww@zj.com designates 172...102 as permitted sender) smtp.mailfrom=ww@zj**.com	Pass pass (domain of ww*@zj.com designates 172...102 as permitted sender) client-ip=172..*.102;
ww*@zj*.com	9/19/2021 9:49:18 AM	Gmail	Fail dkim=neutral (bad format) header.i=@zj*.com header.s=hmail header.b=zIZpAWE2; spf=pass (domain of ww@zj.com designates 172...102 as permitted sender) smtp.mailfrom=ww@zj**.com	Pass pass (domain of ww*@zj.com designates 172...102 as permitted sender) client-ip=172..*.102;