Mailing List Archive

I do not think it matters what the PTR record says, as long as there is
one.
If the DNS-Zones are not the problem then specify a record like this for
every single domain...

IN TXT "v=spf1 mx ip4:192.168.1.1 -all"

You would replace 192.168.1.1 with the IP address of your server.
If you multiple servers you can specify something like 192.168.1.1/24
You do not need to include PTR in anything.

Sam

-----Original Message-----
From: owner-spf-help@v2.listbox.com
[mailto:owner-spf-help@v2.listbox.com] On Behalf Of Sebastian Buntin
Sent: Friday, June 25, 2004 5:53 AM
To: spf-help@v2.listbox.com
Subject: [spf-help] Multiple PTR's




Hi!

I work for an ISP and wants to set-up spf.
Now I have the following Problem:

We have multiple Domains whose mails originate from the same servers.
means, our clients uses one and the same server for their domains. (=one
mailserver for receiving and sending for multiple domains)

how have I to set up the ptr for my IP-addresses?
the DNS-Zones aren't the real problem. but can I specify
multiple canonical names for one IP?
I'm using BIND 8.
Mailserver is Sendmail.

does a SPF-Solution exists for Microsoft Exchange Server (2003)?


Greetings, Sebastian

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