add email sending host to SPF record with redirect

Question

Let us say our domain name is: somedomain.com

We are using a hosted microsoft exchange server for our domain and our current SPF record looks like this

the TXT record for somedomain.com currently has:

v=spf1 redirect=exchange.someisp.net.au

Now, we also want to send emails using sendmail on a linux box whose host name is skynet.somedomain.com and has ip address 1.2.3.4

How do we modify the TXT record to add this host name, yet still keep exchange.someisp.net.au?

Thanks

Answer 1

然后我认为您的SPF记录应如下所示：

v=spf1 a:skynet.somedomain.com redirect=exchange.someisp.net.au

只有在所有机制（a，mx，ip等）都不匹配时才会检查重定向修饰符。因此，如果一个机制匹配该规则将返回PASS，否则它将测试重定向为今天。