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
cz*@sh*.com.cn	5/24/2023 5:49:19 AM	Hotmail	Pass spf=pass (sender IP is 58...180) smtp.mailfrom=sh*.cn; dkim=pass (signature was verified) header.d=sh.cn;dmarc=bestguesspass action=none header.from=sh**.cn;compauth=pass reason=109	Pass Pass (protection.outlook.com: domain of sh*.cn designates 58...180 as permitted sender) receiver=protection.outlook.com; client-ip=58..**.180; helo=outsmtp.static.tongxin.cn; pr=C
cz*@pr*.tongxin.cn	5/24/2023 5:36:46 AM	Hotmail	Fail spf=pass (sender IP is 58...180) smtp.mailfrom=pr*.cn; dkim=none (message not signed) header.d=none;dmarc=bestguesspass action=none header.from=pr*.cn;compauth=pass reason=109	Pass Pass (protection.outlook.com: domain of pr*.cn designates 58...180 as permitted sender) receiver=protection.outlook.com; client-ip=58..**.180; helo=outsmtp.static.tongxin.cn; pr=C
ma*@ho*.com	5/16/2023 3:14:49 AM	Hotmail	Pass spf=pass (sender IP is 185...144) smtp.mailfrom=ho*.com; dkim=pass (signature was verified) header.d=ho.com;dmarc=bestguesspass action=none header.from=ho**.com;compauth=pass reason=109	Pass Pass (protection.outlook.com: domain of ho*.com designates 185...144 as permitted sender) receiver=protection.outlook.com; client-ip=185..**.144; helo=delivery22.mailspamprotection.com; pr=C
ma*@ho*.com	5/16/2023 3:14:49 AM	Yahoo	Pass atlas107.free.mail.bf1.yahoo.com; dkim=pass header.i=@ho*.com header.s=default; spf=pass smtp.mailfrom=ho.com; dmarc=unknown header.from=ho**.com;	Pass pass (domain of ho*.com designates 185..**.144 as permitted sender)
sa*@nb*.com	5/11/2023 10:36:57 PM	Yahoo	Fail atlas-production.v2-mail-prod1-gq1.omega.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=nb*.com; dmarc=unknown header.from=nb*.com;	Pass pass (domain of nb*.com designates 54..**.34 as permitted sender)
sa*@nb*.com	5/11/2023 10:36:57 PM	Hotmail	Fail spf=pass (sender IP is 43...173) smtp.mailfrom=nb*.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nb*.com;compauth=pass reason=100	Pass Pass (protection.outlook.com: domain of nb*.com designates 43...173 as permitted sender) receiver=protection.outlook.com; client-ip=43..**.173; helo=bg5.exmail.qq.com; pr=C
ad*@sk*.cn	5/10/2023 9:12:56 PM	Hotmail	Pass spf=fail (sender IP is 207...184) smtp.mailfrom=sk*.cn; dkim=pass (signature was verified) header.d=sk.cn;dmarc=pass action=none header.from=sk**.cn;compauth=pass reason=100	Fail Fail (protection.outlook.com: domain of sk*.cn does not designate 207...184 as permitted sender) receiver=protection.outlook.com; client-ip=207...184; helo=mail.sk*.cn;
ma*@ho*.com	5/6/2023 4:12:17 AM	Hotmail	Fail spf=pass (sender IP is 185...2) smtp.mailfrom=ho*.com; dkim=fail (signature did not verify) header.d=ho.com;dmarc=bestguesspass action=none header.from=ho**.com;compauth=pass reason=109	Pass Pass (protection.outlook.com: domain of ho*.com designates 185...2 as permitted sender) receiver=protection.outlook.com; client-ip=185..**.2; helo=delivery15.mailspamprotection.com; pr=C
ma*@ho*.com	5/6/2023 4:12:17 AM	Yahoo	Fail atlas-production.v2-mail-prod1-gq1.omega.yahoo.com; dkim=perm_fail header.i=@ho*.com header.s=default; spf=pass smtp.mailfrom=ho.com; dmarc=unknown header.from=ho**.com;	Pass pass (domain of ho*.com designates 185..**.2 as permitted sender)

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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
cz*@sh*.com.cn	5/24/2023 5:49:19 AM	Hotmail	Pass spf=pass (sender IP is 58...180) smtp.mailfrom=sh*.cn; dkim=pass (signature was verified) header.d=sh.cn;dmarc=bestguesspass action=none header.from=sh**.cn;compauth=pass reason=109	Pass Pass (protection.outlook.com: domain of sh*.cn designates 58...180 as permitted sender) receiver=protection.outlook.com; client-ip=58..**.180; helo=outsmtp.static.tongxin.cn; pr=C
cz*@pr*.tongxin.cn	5/24/2023 5:36:46 AM	Hotmail	Fail spf=pass (sender IP is 58...180) smtp.mailfrom=pr*.cn; dkim=none (message not signed) header.d=none;dmarc=bestguesspass action=none header.from=pr*.cn;compauth=pass reason=109	Pass Pass (protection.outlook.com: domain of pr*.cn designates 58...180 as permitted sender) receiver=protection.outlook.com; client-ip=58..**.180; helo=outsmtp.static.tongxin.cn; pr=C
ma*@ho*.com	5/16/2023 3:14:49 AM	Hotmail	Pass spf=pass (sender IP is 185...144) smtp.mailfrom=ho*.com; dkim=pass (signature was verified) header.d=ho.com;dmarc=bestguesspass action=none header.from=ho**.com;compauth=pass reason=109	Pass Pass (protection.outlook.com: domain of ho*.com designates 185...144 as permitted sender) receiver=protection.outlook.com; client-ip=185..**.144; helo=delivery22.mailspamprotection.com; pr=C
ma*@ho*.com	5/16/2023 3:14:49 AM	Yahoo	Pass atlas107.free.mail.bf1.yahoo.com; dkim=pass header.i=@ho*.com header.s=default; spf=pass smtp.mailfrom=ho.com; dmarc=unknown header.from=ho**.com;	Pass pass (domain of ho*.com designates 185..**.144 as permitted sender)
sa*@nb*.com	5/11/2023 10:36:57 PM	Yahoo	Fail atlas-production.v2-mail-prod1-gq1.omega.yahoo.com; dkim=unknown; spf=pass smtp.mailfrom=nb*.com; dmarc=unknown header.from=nb*.com;	Pass pass (domain of nb*.com designates 54..**.34 as permitted sender)
sa*@nb*.com	5/11/2023 10:36:57 PM	Hotmail	Fail spf=pass (sender IP is 43...173) smtp.mailfrom=nb*.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nb*.com;compauth=pass reason=100	Pass Pass (protection.outlook.com: domain of nb*.com designates 43...173 as permitted sender) receiver=protection.outlook.com; client-ip=43..**.173; helo=bg5.exmail.qq.com; pr=C
ad*@sk*.cn	5/10/2023 9:12:56 PM	Hotmail	Pass spf=fail (sender IP is 207...184) smtp.mailfrom=sk*.cn; dkim=pass (signature was verified) header.d=sk.cn;dmarc=pass action=none header.from=sk**.cn;compauth=pass reason=100	Fail Fail (protection.outlook.com: domain of sk*.cn does not designate 207...184 as permitted sender) receiver=protection.outlook.com; client-ip=207...184; helo=mail.sk*.cn;
ma*@ho*.com	5/6/2023 4:12:17 AM	Hotmail	Fail spf=pass (sender IP is 185...2) smtp.mailfrom=ho*.com; dkim=fail (signature did not verify) header.d=ho.com;dmarc=bestguesspass action=none header.from=ho**.com;compauth=pass reason=109	Pass Pass (protection.outlook.com: domain of ho*.com designates 185...2 as permitted sender) receiver=protection.outlook.com; client-ip=185..**.2; helo=delivery15.mailspamprotection.com; pr=C
ma*@ho*.com	5/6/2023 4:12:17 AM	Yahoo	Fail atlas-production.v2-mail-prod1-gq1.omega.yahoo.com; dkim=perm_fail header.i=@ho*.com header.s=default; spf=pass smtp.mailfrom=ho.com; dmarc=unknown header.from=ho**.com;	Pass pass (domain of ho*.com designates 185..**.2 as permitted sender)