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
el*@pe*.com	7/20/2020 12:33:39 AM	Gmail	Fail dkim=neutral (body hash did not verify) header.i=@pe*.com header.s=perfect header.b=tXm8jybA; spf=neutral (113...234 is neither permitted nor denied by best guess record for domain of el@pe.com) smtp.mailfrom=el@pe**.com	Fail neutral (113...234 is neither permitted nor denied by best guess record for domain of el*@pe.com) client-ip=113..*.234;
el*@pe*.com	7/20/2020 12:33:39 AM	Hotmail	Fail spf=none (sender IP is 113...234) smtp.mailfrom=pe*.com; hotmail.com; dkim=fail (body hash did not verify) header.d=pe.com;hotmail.com; dmarc=none action=none header.from=pe**.com;compauth=pass reason=105	Fail None (protection.outlook.com: pe***.com does not designate permitted sender hosts)
el*@pe*.com	7/20/2020 12:16:44 AM	Gmail	Fail dkim=neutral (body hash did not verify) header.i=@pe*.com header.s=perfect header.b=jiAtRqRL; spf=neutral (113...234 is neither permitted nor denied by best guess record for domain of el@pe.com) smtp.mailfrom=el@pe**.com	Fail neutral (113...234 is neither permitted nor denied by best guess record for domain of el*@pe.com) client-ip=113..*.234;
el*@pe*.com	7/20/2020 12:19:12 AM	Gmail	Fail dkim=neutral (body hash did not verify) header.i=@pe*.com header.s=perfect header.b=XGdyfw6B; spf=neutral (113...234 is neither permitted nor denied by best guess record for domain of el@pe.com) smtp.mailfrom=el@pe**.com	Fail neutral (113...234 is neither permitted nor denied by best guess record for domain of el*@pe.com) client-ip=113..*.234;
el*@pe*.com	7/20/2020 12:19:12 AM	Hotmail	Fail spf=none (sender IP is 113...234) smtp.mailfrom=pe*.com; hotmail.com; dkim=fail (body hash did not verify) header.d=pe.com;hotmail.com; dmarc=none action=none header.from=pe**.com;compauth=pass reason=105	Fail None (protection.outlook.com: pe***.com does not designate permitted sender hosts)
el*@pe*.com	7/20/2020 12:16:44 AM	Hotmail	Fail spf=none (sender IP is 113...234) smtp.mailfrom=pe*.com; hotmail.com; dkim=fail (body hash did not verify) header.d=pe.com;hotmail.com; dmarc=none action=none header.from=pe**.com;compauth=pass reason=105	Fail None (protection.outlook.com: pe***.com does not designate permitted sender hosts)
el*@we*.com	7/19/2020 11:22:01 PM	Gmail	Fail spf=neutral (198...11 is neither permitted nor denied by best guess record for domain of el*@we.com) smtp.mailfrom=el@we*.com	Fail neutral (198...11 is neither permitted nor denied by best guess record for domain of el*@we.com) client-ip=198..*.11;
el*@we*.com	7/19/2020 11:22:01 PM	Hotmail	Fail spf=none (sender IP is 115...1) smtp.mailfrom=we*.com; hotmail.com; dkim=none (message not signed) header.d=none;hotmail.com; dmarc=none action=none header.from=we*.com;compauth=fail reason=001	Fail None (protection.outlook.com: we***.com does not designate permitted sender hosts)
el*@pe*.com	7/19/2020 11:14:07 PM	Hotmail	Fail spf=none (sender IP is 113...234) smtp.mailfrom=pe*.com; hotmail.com; dkim=fail (body hash did not verify) header.d=pe.com;hotmail.com; dmarc=none action=none header.from=pe**.com;compauth=pass reason=105	Fail None (protection.outlook.com: pe***.com does not designate permitted sender hosts)

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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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