steve at teamITS
Jan 26, 2007, 11:58 PM
Post #2 of 2
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RE: [spf-webmasters] SPF Wizard Questions
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> Alex Samol <mailto:asamol [at] enfieldenterprisesinc> wrote on Friday,
> January 26, 2007 1:15 PM:
>
>> Question 1. enfieldenterprisesinc.com's IP address is 216.204.3.251
>> (ipn36372-c49019.cidr.lightship.net).
>> Does that server send mail from enfieldenterprisesinc.com?
>> Answer 1. The IP address shown in is not the IP address of our MX
record
>> so would the answer be "NO"?
MX servers are used for incoming mail. The same server may or
may not be used for outgoing mail. You need to tell us this.
The question is stating that "enfieldenterprisesinc.com's IP
address is 216.204.3.251." This is a fact. It then asks if your
organization's outgoing mail can go out through that server.
>> Question 2.This wizard found 5 names for the MX servers for
>> enfieldenterprisesinc.com: mail2.no-ip.com, exodus.lightshipmail.net,
>> mail1.no-ip.com, mail, and inbound.electric.net. (A single machine
may go
>> by more than one hostname. All of them are shown.) MX servers receive
mail
>> for enfieldenterprisesinc.com.
>> Do they also send mail from enfieldenterprisesinc.com?
>> Answer 2. All look OK except for the inbound.electric.net. We have
our own
>> MS Exchange server that receives mail with a MX record pointed to our
>> static IP. How this I answer this?
Well, I only see four MX records, and inbound.electric.net is
not one of them.
Regardless, if you are saying only some of the MX servers also
send outgoing mail from your domain, then to be correct about it you
should only list those servers that do, and not use the "mx" mechanism
in your SPF record.
>> Question 3. Do you want to just approve any host
>> whose name ends in enfieldenterprisesinc.com? (Expensive, unreliable
and
>> not recommended) Do any other servers send mail from
>> enfieldenterprisesinc.com?
>> Answer 3. I feel this should be NO.
Generally yes that is correct.
>> Question 4. You can describe them by giving "arguments" to the a:,
mx:,
>> ip4:, and ptr: mechanisms. mx: takes domain names and approves all
the MX
>> servers of these domains. To keep the wizard short we left out ptr:,
but
>> it works analogously. Answer 4. Would "A" be
enfieldenterprisesinc.com?
Yes. "a:example.com" would mean to look up the IP of
"example.com."
>> Would "MX" be mail.enfieldenterprisesinc.com?
It would be all MX servers for your domain. Either five
(mail2.no-ip.com has two IPs) or six if the inbound.electric.net host
should also be in the list.
>> Would "ip4" 216.204.128.218 [.this is our static IP that our MX record
>> points to] or would this be our local IP 192.168.1.19/24]?
Your local (LAN/internal) IP cannot communicate on the Internet
so that's not correct.
You can use "ip4:x.x.x.x" instead of using "a" or "mx"...in fact
it is slightly preferred since it saves the recipient at least one DNS
lookup. However, you should not list the same server multiple times.
>> Question 4. Could mail from enfieldenterprisesinc.com originate
through
>> servers belonging to some other domain?
>> If you send mail through your ISP's servers, and the ISP has
published an
>> SPF record, name the ISP here.
>> Answer 4. I don't know how to answer this question or how to get the
>> correct answer. Please advise.
Do any of your users send mail out using your domain but using
an SMTP server from their ISP (Comcast, Earthlnk, etc.)?
>> Question 5. Do the above lines describe all the hosts
>> that send mail from enfieldenterprisesinc.com?
>> Answer 5. No sure how to answer this either. Please advise.
It wants to know if you left out any mail servers when you
answered 1-4?
>> Question 6. enfieldenterprisesinc.com. IN TXT
>> Answer 6. What are you requesting in the the text box? I not sure
how to
>> answer this question if is is a question either. Please advise.
It should display the result of what you entered above.
You may wish to review the "Common mistakes" FAQ below.
-----
SPF FAQ: http://www.openspf.org/FAQ
Common mistakes: http://www.openspf.org/FAQ/Common_mistakes
- Steve Yates
- ITS, Inc.
- Why is a person who plays the piano called a pianist but a person who
drives a racecar is not called a racist?
~ Taglines by Taglinator - www.srtware.com ~
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