Can't modify an existing SPF record

[Mark Elkins]

There can only be one SFP TXT record per domain. A complete record could 
look like.....

domain1.com.      IN    TXT   "v=spf1 a:mail.domain1.com 
a:smtp.domain1.com a:relay.domain2.com -all"

It should be logical to use a (domain) name because that name could have 
multiple IP addresses, both IPv4 and IPv6.
Note that there are double quotes around the whole TXT string as well.

On 7/8/22 5:55 PM, Richard T.A. Neal wrote:
>
> Hi Roberto,
>
> You need to prefix it with “a:” to indicate that this is an A-record, 
> i.e.:
>
> a:relay.company.com
>
> Best,
>
> Richard.
>
> *From:*bind-users <bind-users-bounces at lists.isc.org> *On Behalf Of 
> *Greg Choules via bind-users
> *Sent:* 08 July 2022 4:45 pm
> *To:* Roberto Carna <robertocarna36 at gmail.com>
> *Cc:* ML BIND Users <bind-users at lists.isc.org>
> *Subject:* Re: Can't modify an existing SPF record
>
> Hi Roberto. What domain is this SPF for and exactly how are you trying 
> to add the extra term?
>
> Cheers, Greg
>
> On Fri, 8 Jul 2022 at 16:38, Roberto Carna <robertocarna36 at gmail.com 
> <mailto:robertocarna36 at gmail.com>> wrote:
>
>     Dear, from my webmin interface for BIND9, I try to add an additional
>     allowed sender host to our SPF record, but I get the following error:
>
>     Failed to save record : 'relay.company.com
>     <http://relay.company.com>' is not a valid host to
>     allow sending from
>
>     What does this mean? Do I have to consider some important thing
>     I'm forgetting ?
>
>     relay.company.com <http://relay.company.com> is already defined in
>     our public DNS, and it has a
>     reverse record too.
>
>     if I add this record by hand, it's not replicated to the DNS slaves.
>
>     Thanks in advance!!!
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-- 

Mark James ELKINS  -  Posix Systems - (South) Africa
mje at posix.co.za       Tel: +27.826010496 <tel:+27826010496>
For fast, reliable, low cost Internet in ZA: https://ftth.posix.co.za 
<https://ftth.posix.co.za>

Posix SystemsVCARD for MJ Elkins

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