SPF 用于指定发送邮件的服务器 是一种高效的反垃圾邮件解决方案 SPF是为了防范伪造发件人地址发送垃圾邮...
您可以在一个域名上发布多条 SPF 记录吗?答案是否定的:一个域名一定不能有多条 SPF 记录,否则 SPF 会失败并返回永久错误(PermError)。 SPF 记录是位于 DNS 中的 TXT 记录,准确地以 "v=spf1" 开始,后面跟一系列的 mechanisms 和 modifiers。 SPF 检查先获取域名上面的所有以 "v=spf1" 开始的 TXT 记录:...
Multiple domains can be included within an SPF record but this tag will only work for valid domains. Finally, -all tells the server that addresses not listed in the SPF record are not authorized to send emails and should be rejected. Alternative options here include ~all, which states ...
A few other specific examples of SPF records include: SoftFail:This example allows email from the specified IP address but marks it as potentially suspicious. V=spf1 ip4:192.0.2.0/24 ~all HardFail:This SPF record example only allows emails to be sent from the specified IP address and rejects...
example.com. IN TXT "v=spf1 include:example.net -all" ; use the SPF details for example.net ; in the above case to replace example.com's SPF ; or example.com. IN TXT "v=spf1 mx include:example.net -all" ; additive - use MX RR for example.com ...
DMARC 入门指南 网络安全 DMARC 是“Domain-based Message Authentication, Reporting & Conformance”... FreeBuf_339209 166985围观2022-04-19 如何修复 SPF PermError: too many DNS lookups 网络安全 当排查邮件送达问题时,您可能会在接收邮件服务器上看到类似下面的 SPF 错误:SPF PermError: too many DNS loo...
include:spf-a.example.com include:spf-b.example.com redirect=spf-c.example.com" netblocks4.example.com TXT "v=spf1 ip4:10.10.10.0/24 ip4:192.168.0.0/16 ip4:172.16.0.0/12 -all" netblocks6.example.com TXT "v=spf1 ip6:2001:db8:2001::/64 ...
multiple administratively-independent domains. For example, a vanity domain "example.net" might send mail using the servers of administratively-independent domains example.com and example.org.Example.net could sayIN TXT "v=spf1 include:example.com include:example.org -all"This...
SiteGround clients can set up an SPF record directly from the DNS Zone Editor in their Client Area > Services > Domains > Settings of the desired domain. For example, if you want to use Google Workspace for your email service, you need to include Google’s SPF (include:_spf.google.com)...
include:_spf.google.com include:_thirdparty.twitter.com -all") # => #<SPF::Query::Record: v=spf1 ip4:199.16.156.0/22 ip4:199.59.148.0/22 ip4:8.25.194.0/23 ip4:8.25.196.0/23 ip4:204.92.114.203 ip4:204.92.114.204/31 ip4:107.20.52.15 ip4:23.21.83.90 include:_spf.google.com include:_...