i'll be calling my ISP tomorrow morning then :)
thanks.
and those other records? how would i set those up?
On Tue, Dec 8, 2020 at 4:26 PM Richard <inbound-lists-php@xxxxxxxxxxxxxxxxxxxxx> wrote:
> Date: Tuesday, December 08, 2020 16:04:43 +0100
> From: Rene Veerman <rene.veerman.netherlands@xxxxxxxxx>
>
>> On Tue, Dec 8, 2020 at 2:15 PM Richard wrote:
>>
>> > Date: Tuesday, December 08, 2020 11:35:30 +0100
>> > From: Rene Veerman <rene.veerman.netherlands@xxxxxxxxx>
>> >
>> > i've been at this for a few days now, but keep on getting stuck..
>> >
>> > while it may be due to my debugging efforts, i can't even get
>> > Thunderbird to send email through that postfix server of mine at
>> > the moment, it delivers the following bounce messages, with a
>> > link that's completely unhelpful :(
>> >
>> > This is the mail system at host smtp.nicer.app.
>> >
>> > I'm sorry to have to inform you that your message could not
>> > be delivered to one or more recipients. It's attached below.
>> >
>> > . . .
>> >
>> > The mail system
>> > <rene.veerman.netherlands@xxxxxxxxx>
>> > <rene.veerman.netherlands@xxxxxxxxx>: host
>> > gmail-smtp-in.l.google.com[2a00:1450:4013:c03::1b] said:
>> > 550-5.7.1 [2001:980:ed77:1:d565:64ae:934a:c18d] Our system
>> > has detected that 550-5.7.1 this message does not meet
>> > IPv6 sending guidelines regarding PTR 550-5.7.1 records
>> > and authentication. Please review 550-5.7.1
>> > https://support.google.com/mail/?p=IPv6AuthError for more
>> > information 550 5.7.1 . bt17si3147299edb.469 - gsmtp
>> > (in reply to end of DATA command)
>> >
>>
>> Your message is being rejected by google because you don't have a
>> matching PTR record:
>>
>> message does not meet IPv6 sending guidelines regarding
>> PTR 550-5.7.1 records
>>
>> See the:
>>
>> Follow recommended IP practices
>> Verify the sending server PTR record
>>
>> section of the document they reference for specific details, but
>> you should follow the guidelines on SPF/DKIM/DMARC in the following
>> section too:
>>
>> Make sure your messages are authenticated
>>
>> In general, and especially when sending to google via IPv6, your
>> mail configuration (server and dns records) needs to be fully
>> standards compliant.
>>
>
> ok, and how would i set all of this up, at afraid.org, a free dns
> provider?
The PTR (aka rDNS, in-addr.arpa) record is managed by the
organization that controls the IPnumber(s) used by the mail server.
[please do not include my direct address in replies.]
