Re: PTR Records

Sorry, yes, we have 3 mail servers. But dewey is the only server that
receives mail for our domain. The other ones (Exchange 2000) send mail,
though. Does that complicate matters? I did include all of them in the SPF
record; but I didn't include any PTR info in the SPF record. Should I
include that? Since only dewey receives mail, I should just leave the one
MX record, right?

Thanks


"Kevin D. Goodknecht Sr. [MVP]" <admin@xxxxxxxxxxxxxx> wrote in message
news:%23Gl98QQ9FHA.2264@xxxxxxxxxxxxxxxxxxxxxxx
> MC <mccato@xxxxxxxxxxx> wrote:
>> Thanks so much, Kevin. I've made those changes; and I have another
>> question, if you don't mind. I created an SPF record, but it has mx
>> in there twice. I looked at some SPF records for other domains, and
>> didn't see that in their records. Will you take a look at it and see
>> if looks correct? Here it is:
>>
>> v=spf1 ip4:168.9.128.0/19 mx a:168.9.128.29 a:168.9.128.195
>> a:168.9.128.204 a:168.9.128.36 mx:dewey.cowetaschools.net ~all
>>
>> All of these changes didn't seem to fix the problem we're having
>> sending email to AOL and Compuserve, though. The strange thing is
>> that one of our 3 email servers can send mail to them; the other 2
>> cannot. The error I see in the ESM is "an SMTP protocol error
>> occurred", so I guess the PTR records are still not right. For some
>> reason, we have a ton of PTR records that point to
>> mail.coweta....that have ips that I don't recognize. Should there
>> just be the one record for dewey in there? I don't know why all those
>> other entries would be there.
>
> You didn't mention that you have three mail servers, that makes a big
> difference, if the mail server does not have an MX record for the domain
> it
> is sending for it must be listed in the SPF record and it must have a PTR
> record, just as the MX server does.
>
> I'd really recommend having an MX record for all mail servers, provided
> all
> three mail servers can receive mail for these domains. You should set them
> up just like you did this one, keeping in mind the mail servers' name in
> its
> HELO name should match the name in the MX record, should have an A record
> for the name and a PTR record for its IP that gives the same name.
> Assuming
> these are Exchange servers they should know where to route the mail for
> each
> user.
>
>
>
>
> --
> Best regards,
> Kevin D. Goodknecht Sr. [MVP]
> Hope This Helps
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.

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