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Did my ISP set up our SPF records correctly?

 

 

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millie at caea

May 6, 2008, 11:24 AM

Post #1 of 3 (345 views)
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Did my ISP set up our SPF records correctly?

Hello,



I asked our ISP to enter the following three lines into our DNS:

caea.com. IN TXT "v=spf1 ip4:216.138.203.130 -all"

caea.com. IN TXT "spf2.0/mfrom ip4:216.138.203.130 -all"

email-server.caea.com. IN TXT "v=spf1 a -all"

Below is what our ISP sent me. It is the raw information for our domain.
The last three lines were entered per my request. I notice that the
"caea.com" and the "email-server.caea.com" are not entered into the DNS.
Is the SPF record set up correctly in our DNS?



Domain Zone file for caea.com

-rw-r--r-- 1 1014 53 798 May 1 14:43
/services/dns/data/hosting/c/a/caea.com



File: /services/dns/data/hosting/c/a/caea.com

;

; Database file c for zone.

; Zone version: 2005111116

;



$TTL 86400

@ 86400 IN SOA cns1.look.ca. hostmaster.caea.com. (

2008050101 ; serial number

21600 ; refresh

3600 ; retry

2592000 ; expire

1200 ; minimum TTL

)

;

; Zone NS Records

;



@ IN NS cns1.look.ca.

@ IN NS cns2.look.ca.



;

; Zone MX Records

;





;

; Zone Records

;



@ IN MX 10 mailto.caea.com.

@ IN MX 100 mail.caea.com.

www IN A 216.138.203.132

mail IN A 209.161.219.1

email-server IN A 209.161.219.1

mailto IN A 216.138.203.130

owa IN A 216.138.203.130

owa2 IN A 209.161.219.1

IN TXT "v=spf1 ip4:216.138.203.130 -all"

IN TXT "spf2.0/mfrom ip4:216.138.203.130 -all"

IN TXT "v=spf1 a -all"

@ IN A 216.138.203.132

I also enabled the Sender ID, recipient filtering, and
connection filtering on our Exchange 2003 server. I thought I had taken
the necessary steps to reduce the amount of spam NDRs. However, today,
our inboxes have been inundated with spam NDRs. Is there anything else I
can do?

Thank you,

Millie Kwan



The foregoing communication is intended only for the use of the individual or individuals named above and should not be read by or delivered to any other person. Such communication may contain information which is privileged, confidential or otherwise exempt from disclosure. Any collection, use, disclosure, forwarding or copying of this communication is strictly prohibited. If you have received this information in error, please accept our apology and immediately return the communication to the sender by electronic mail and destroy the message. See also Equity's Privacy Policy available at www.caea.com.

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steve at teamITS

May 7, 2008, 7:47 AM

Post #2 of 3 (331 views)
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RE: Did my ISP set up our SPF records correctly? [In reply to]

Millie Kwan wrote on 5/6/2008 1:24:12 PM:

>owa2 IN A 209.161.219.1
> IN TXT "v=spf1 ip4:216.138.203.130 -all"
> IN TXT "spf2.0/mfrom ip4:216.138.203.130
-all"
> IN TXT "v=spf1 a -all"

Currently no TXT records are showing in DNS for caea.com. It
looks to me like they set all three up for the owa.caea.com domain:

;; QUESTION SECTION:
;owa2.caea.com. IN TXT

;; ANSWER SECTION:
owa2.caea.com. 86400 IN TXT "v=spf1
ip4:216.138.203.130 -all"
owa2.caea.com. 86400 IN TXT "spf2.0/mfrom
ip4:216.138.203.130 -all"
owa2.caea.com. 86400 IN TXT "v=spf1 a -all"

-----
SPF FAQ: http://www.openspf.org/FAQ
Common mistakes: http://www.openspf.org/FAQ/Common_mistakes

- Steve Yates
- ITS, Inc.
- Even a philosopher gets upset with a toothache.

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vesely at tana

May 7, 2008, 7:58 AM

Post #3 of 3 (331 views)
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Re: Did my ISP set up our SPF records correctly? [In reply to]

Millie Kwan wrote:
> Hello,
>
> I asked our ISP to enter the following three lines into our DNS:
>
> caea.com. IN TXT "v=spf1 ip4:216.138.203.130 -all"
>
> caea.com. IN TXT "spf2.0/mfrom ip4:216.138.203.130 -all"
>
> email-server.caea.com. IN TXT "v=spf1 a -all"
>
> Below is what our ISP sent me. It is the raw information for our domain.
> The last three lines were entered per my request. I notice that the
> "caea.com" and the "email-server.caea.com" are not entered into the DNS.
> Is the SPF record set up correctly in our DNS?

Not quite:

> /services/dns/data/hosting/c/a/caea.com
> [...]
> owa2 IN A 209.161.219.1
>
> IN TXT "v=spf1 ip4:216.138.203.130 -all"
>
> IN TXT "spf2.0/mfrom ip4:216.138.203.130 -all"
>
> IN TXT "v=spf1 a -all"

In facts if you `dig owa2.caea.com txt` you'll get them.

Apparently, the last record owner becomes the default for lines
beginning with blanks below it.

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