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
su*@sm*.hk	6/13/2021 9:12:14 AM	Yahoo	Fail atlas306.free.mail.ne1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sm*.hk; dmarc=pass(p=REJECT) header.from=sm*.hk;	Pass pass (domain of sm*.hk designates 194..**.190 as permitted sender)
su*@sm*.hk	6/13/2021 8:50:39 AM	Yahoo	Fail atlas222.free.mail.bf1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sm*.hk; dmarc=pass(p=REJECT) header.from=sm*.hk;	Pass pass (domain of sm*.hk designates 194..**.190 as permitted sender)
su*@sm*.hk	6/13/2021 8:14:48 AM	Gmail	Fail spf=pass (domain of su*@sm.hk designates 2a0c:8fc0:c11c::1 as permitted sender) smtp.mailfrom=su@sm.hk; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=sm**.hk	Pass pass (domain of su*@sm*.hk designates 2a0c:8fc0:c11c::1 as permitted sender) client-ip=2a0c:8fc0:c11c::1;
su*@sm*.hk	6/13/2021 6:38:22 AM	Yahoo	Fail atlas220.free.mail.gq1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sm*.hk; dmarc=pass(p=REJECT) header.from=sm*.hk;	Pass pass (domain of sm*.hk designates 194..**.190 as permitted sender)
su*@sm*.hk	6/13/2021 6:26:49 AM	Yahoo	Fail atlas313.free.mail.ne1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sm*.hk; dmarc=pass(p=REJECT) header.from=sm*.hk;	Pass pass (domain of sm*.hk designates 194..**.190 as permitted sender)
su*@sm*.hk	6/13/2021 6:05:26 AM	Hotmail	Fail spf=pass (sender IP is 194...190) smtp.mailfrom=sm*.hk; hotmail.com; dkim=none (message not signed) header.d=none;hotmail.com; dmarc=permerror action=none header.from=sm*.hk;compauth=pass reason=105	Pass Pass (protection.outlook.com: domain of sm*.hk designates 194...190 as permitted sender) receiver=protection.outlook.com; client-ip=194...190; helo=mail.sm*.hk;
su*@sm*.hk	6/13/2021 5:51:46 AM	Gmail	Fail spf=pass (domain of su*@sm.hk designates 194...190 as permitted sender) smtp.mailfrom=su@sm.hk; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=sm**.hk	Pass pass (domain of su*@sm.hk designates 194...190 as permitted sender) client-ip=194..*.190;
cj*@lx*.com	6/10/2021 9:54:52 PM	Gmail	Pass dkim=pass header.i=@lx*.com header.s=mail header.b=l+32mZm4; spf=pass (domain of cj@lx.com designates 58...200 as permitted sender) smtp.mailfrom=cj@lx**.com	Pass pass (domain of cj*@lx.com designates 58...200 as permitted sender) client-ip=58..*.200;
lo*@cn*.ca	6/9/2021 5:05:36 PM	Hotmail	Pass spf=pass (sender IP is 23...46) smtp.mailfrom=cn*.ca; hotmail.com; dkim=pass (signature was verified) header.d=cn.ca;hotmail.com; dmarc=pass action=none header.from=cn**.ca;compauth=pass reason=100	Pass Pass (protection.outlook.com: domain of cn*.ca designates 23...46 as permitted sender) receiver=protection.outlook.com; client-ip=23..**.46; helo=cross.elm.relay.mailchannels.net;

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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
su*@sm*.hk	6/13/2021 9:12:14 AM	Yahoo	Fail atlas306.free.mail.ne1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sm*.hk; dmarc=pass(p=REJECT) header.from=sm*.hk;	Pass pass (domain of sm*.hk designates 194..**.190 as permitted sender)
su*@sm*.hk	6/13/2021 8:50:39 AM	Yahoo	Fail atlas222.free.mail.bf1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sm*.hk; dmarc=pass(p=REJECT) header.from=sm*.hk;	Pass pass (domain of sm*.hk designates 194..**.190 as permitted sender)
su*@sm*.hk	6/13/2021 8:14:48 AM	Gmail	Fail spf=pass (domain of su*@sm.hk designates 2a0c:8fc0:c11c::1 as permitted sender) smtp.mailfrom=su@sm.hk; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=sm**.hk	Pass pass (domain of su*@sm*.hk designates 2a0c:8fc0:c11c::1 as permitted sender) client-ip=2a0c:8fc0:c11c::1;
su*@sm*.hk	6/13/2021 6:38:22 AM	Yahoo	Fail atlas220.free.mail.gq1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sm*.hk; dmarc=pass(p=REJECT) header.from=sm*.hk;	Pass pass (domain of sm*.hk designates 194..**.190 as permitted sender)
su*@sm*.hk	6/13/2021 6:26:49 AM	Yahoo	Fail atlas313.free.mail.ne1.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=sm*.hk; dmarc=pass(p=REJECT) header.from=sm*.hk;	Pass pass (domain of sm*.hk designates 194..**.190 as permitted sender)
su*@sm*.hk	6/13/2021 6:05:26 AM	Hotmail	Fail spf=pass (sender IP is 194...190) smtp.mailfrom=sm*.hk; hotmail.com; dkim=none (message not signed) header.d=none;hotmail.com; dmarc=permerror action=none header.from=sm*.hk;compauth=pass reason=105	Pass Pass (protection.outlook.com: domain of sm*.hk designates 194...190 as permitted sender) receiver=protection.outlook.com; client-ip=194...190; helo=mail.sm*.hk;
su*@sm*.hk	6/13/2021 5:51:46 AM	Gmail	Fail spf=pass (domain of su*@sm.hk designates 194...190 as permitted sender) smtp.mailfrom=su@sm.hk; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=sm**.hk	Pass pass (domain of su*@sm.hk designates 194...190 as permitted sender) client-ip=194..*.190;
cj*@lx*.com	6/10/2021 9:54:52 PM	Gmail	Pass dkim=pass header.i=@lx*.com header.s=mail header.b=l+32mZm4; spf=pass (domain of cj@lx.com designates 58...200 as permitted sender) smtp.mailfrom=cj@lx**.com	Pass pass (domain of cj*@lx.com designates 58...200 as permitted sender) client-ip=58..*.200;
lo*@cn*.ca	6/9/2021 5:05:36 PM	Hotmail	Pass spf=pass (sender IP is 23...46) smtp.mailfrom=cn*.ca; hotmail.com; dkim=pass (signature was verified) header.d=cn.ca;hotmail.com; dmarc=pass action=none header.from=cn**.ca;compauth=pass reason=100	Pass Pass (protection.outlook.com: domain of cn*.ca designates 23...46 as permitted sender) receiver=protection.outlook.com; client-ip=23..**.46; helo=cross.elm.relay.mailchannels.net;