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Graham Murray wrote:
| <Matthew(_dot_)van(_dot_)Eerde(_at_)hbinc(_dot_)com> writes:
|
|
|>Why do you have an SPF record for every machine in your domain? Why not
|>just do
|>v=spf1 ptr -all
|
|
| Because if your domain is example.com and you have
|
| example.com. TXT "v=spf1 ptr -all"
| host.example.com. A 10.1.2.3.4
|
| Then if mail is sent with a MAIL_FROM of host.example.com the
| receiving system will perform a TXT lookup for 'host.example.com.' and
| will not receive the SPF record for example.com. Therefore an SPF
| record has to be published for every host which has an 'A', 'AAAA' or
| MX record.
All hosts are allowed to send mail as MX's?
- --
Chuck Mead
csm(_at_)moongroup(_dot_)com
Chief Tech @ http://moongroup.com - http://anirononline.com
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