Common SPF syntax errors are: Mechanisms that perform DNS lookups (mx, a, ptr, exists, redirect, include) contain text rather than domains or hostnames Mechanisms contain a numerical value, when they require a domain or hostname Format of IP addresses for ip4 and ip6 mechanisms is incorrect...
If a domain has no SPF record at all, the result is “None”. If a domain has a temporary error during DNS processing, you get the result “TempError” (called “error” in earlier drafts). If a syntax or evaluation error occurs (eg. the domain specifies an unrecognized mechanism) the...
domain.com text = "v=spf1 ip4:38.113.1.0/24 ip4:38.113.20.0/24 ip4:12.45.243.128/26 ip4:65.254.224.0/19 include:_spf.google.com include:_spf.qualtrics.com -all" This result verifies that the record has been propagated sufficiently throughout the global network of DNS nameservers and shoul...
(2) "ip4=192.0.2.0 ip4=192.0.2.1"是SPF授权IP地址部分。在本例中,SPF记录告诉服务器,ip4=192.0.2.0和ip4=192.0.2.1被授权代表该域发送电子邮件; (3) "include:examplesender.net"是"include"标记的示例,该标记告诉服务器,被包含域(examplesender.net)的SPF记录内容应被检查,其中包含的IP地址也应被视为已...
including any lookups caused by the use of the "include" mechanism or the "redirect" modifier"'. The mechanisms of: "include", "mx", "a", "ptr", and "exists" count against the limit of 10 lookups. The "all, "ip4", and "ip6" mechanisms do not count against the limit of 10 si...
使用ip4或ip6指令:直接指定IP地址,减少对其他域名的依赖。 示例 假设我们有一个域名example.com,其SPF记录如下: 代码语言:txt 复制 v=spf1 a mx include:_spf.google.com ~all 这个SPF记录表示: v=spf1:使用SPF版本1。 a:允许example.com的A记录IP地址发送邮件。
For instance, "ip4:" precedes an IPv4 address range. An example SPF record might authorize email from specific IP addresses with "v=spf1 ip4:192.0.2.0/24 -all." What does an SPF record look like? SPF records appear as a single line of text within a DNS TXT record. It consists of ...
SPF TXT record syntax for Microsoft 365A typical SPF TXT record has the following syntax:text Copy v=spf1 [<ip4>|<ip6>:<IPAddress1> <ip4>|<ip6>:<IPAddress2>... <ip4>|<ip6>:<AddressN>] [include:<DomainName1> include:<DomainName1>... include:<DomainNameN>] <...
The basic syntax of the SPF TXT record for a custom domain in Microsoft 365 is: txt v=spf1 <valid mail sources> <enforcement rule> Or: text v=spf1 [<ip4>|<ip6>:<PublicIPAddress1> <ip4>|<ip6>:<PublicIPAddress2>... <ip4>|<ip6>:<PublicIPAddressN>] [include...
这个SPF记录表示: v=spf1:使用SPF版本1。 a:允许example.com的A记录IP地址发送邮件。 mx:允许example.com的MX记录服务器发送邮件。 include:_spf.google.com:包含Google的SPF记录。 ~all:所有其他IP地址都不被允许发送邮件。 参考链接 SPF Record Syntax DNS TXT Record 希望这些信息对你有所帮助!相关...