Step by step instructions fro addinng SPF record in SBS 2003 required

you need to add SPF to your external dns name not internal dns name , find who is your domain hosting company and ask them to add it or add it yourself .
check this
http://www.microsoft.com/mscorp/safety/content/technologies/senderid/wizard/

do a whois lookup on your external domain name to find the domain hosting company or domain registrar . a domain register can be some company such as godaddy.com or network solutions etc

http://www.whois.net/

Hi adiloadilo

BT is my ISP but I host my own mail and the A record  is pointing to my IP address. When I use openspf.org, the IP address that they automatically list up as my A record is held at MEGANAMESERVERS.COM this is a BT server but is only used for www and ftp.
As far as adding the SPF text file to external DNS, I have no external DNS enties listed in my SBS Server on the DNS server so how do I add the DNS entry?

ok , if you do not have access to your external dns entries , then you can not add an spf record , SPF records are only added to the external domain name. for example if your email is  user@yourdomain.com  then you should add an spf record to  contoso.com domain , this is what all mail servers on the internet see . to know what is you mail server A records you need to do an MX look up , go to this address :
http://www.mxtoolbox.com/
enter your domain name and it will show you the A records of your public email servers . if the a records are not the same as your company domain name , for example you find mail.contoso.com  instead of mail.yourdomain.com , then you should contact the owner of that public domain to modify your spf A records  .
if you just trying to fight spam and email spoofers ,then you should try setting up your IMF filtering on SBS Exchange check this :
http://www.petri.co.il/block_spam_with_exchange2003_imf.htm
IMF really do a great job
if you can afford it and want to get a third party solution then you should try something like :
Postini by google : http://www.google.com/postini/email.html#utm_campaign=en&utm_source=en-ha-na-us-bk&utm_medium=ha&utm_term=postini
GFI : http://www.gfi.com/landing/mestop.asp?adv=952&loc=109&gclid=CNrB3tr04KACFSFy5Qod0TuFBw

Good Luck

Hi adiloadilo,
I have checked the IMF and that is already setup - I can remeber setting that a few years ago.
I have entered my domain in the MX lookup and the result is mail.mydomainname.co.uk and my public static IP address. if i do a DNS lookup i get Type = A , domain name = mydomanname.co.uk and IP address =  an other public IP address that belongs to my ISP. But they say they have nothing to do with my mail as it goes directly to my public IP address and skips past them.
I am still not sure what you are calling my extrnal dns enties. Are these entries listed in my dns server in the SBS box or are they on some server in cyber space?

Hi,
I can maage my domain on my ISPs site. It looks like I can add an mx record an a record or antext message. I presume this is where I add the spf txt record.

hhehe finallly , yes that is where you add spf :)  

 add it as txt

thanks for the help

Thanks for the help.
its late here so I will get that sortet out tomorrow morning. Then all I have to do is work out how to do the same thing for another customer that has a totally different configuration.
Thanks again