[lowrisc-dev] lists.lowrisc.org has problems with SPF (I think)

Alex Bradbury asb at asbradbury.org
Tue Jul 18 11:18:26 BST 2017


On 16 July 2017 at 14:49, Ludovic Pouzenc <ludovic at pouzenc.fr> wrote:
> Hi,
>
> (sorry for anoying all the list, but suggested
> mailman at listmaster.pepperfish.net does not work)
>
> I just received an automated unsubscribe mail from the lowrisc-dev list
> after many (unnoticied) bounces. My mail server says that SPF checks against
> lists.lowrisc.org fails. I try to figure out things manually and I think
> there is a missing ipv4 or cname in your SPF string about "bagpuss".
>
> 2017-06-24 22:17:25 H=bagpuss.pepperfish.net [148.251.8.16]
> X=TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256
> F=<lowrisc-dev-bounces at lists.lowrisc.org> rejected RCPT
> <ludovic at pouzenc.fr>: SPF check failed.
> 2017-06-25 11:44:40 H=bagpuss.pepperfish.net [148.251.8.16]
> X=TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256
> F=<lowrisc-dev-bounces at lists.lowrisc.org> rejected RCPT
> <ludovic at pouzenc.fr>: SPF check failed.
> 2017-06-25 12:00:02 H=bagpuss.pepperfish.net [148.251.8.16]
> X=TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256
> F=<lowrisc-dev-bounces+ef5e968778ebd1e4058d1d098e684c24c01fe308 at lists.lowrisc.org>
> rejected RCPT <ludovic at pouzenc.fr>: SPF check failed.
> 2017-06-25 12:00:14 H=bagpuss.pepperfish.net [148.251.8.16]
> X=TLS1.2:ECDHE_RSA_AES_256_CBC_SHA384:256
> F=<lowrisc-dev-bounces at lists.lowrisc.org> rejected RCPT
> <ludovic at pouzenc.fr>: SPF check failed.
>
>
>
> # 2017-07-16
>
> lpouzenc at lud-GB1:~$ dig +short TXT lists.lowrisc.org
> "v=spf1 mx ip6:2a01:4f8:201:620f::2 -all"
> lpouzenc at lud-GB1:~$ dig +short MX lists.lowrisc.org
> 20 mx3.pepperfish.net.
> 10 mx0.pepperfish.net.
> lpouzenc at lud-GB1:~$ dig +short A mx0.pepperfish.net
> 88.99.213.221
> lpouzenc at lud-GB1:~$ dig +short A mx3.pepperfish.net
> 185.163.68.253
> lpouzenc at lud-GB1:~$ dig +short -x 2a01:4f8:201:620f::2
> bagpuss.pepperfish.net.
> lpouzenc at lud-GB1:~$ dig +short AAAA bagpuss.pepperfish.net
> 2a01:4f8:201:620f::2
> lpouzenc at lud-GB1:~$ dig +short A bagpuss.pepperfish.net
> 148.251.8.16
>   ^------ this one goes in "-all" I think.
>
>
> I just renew my subscription, so if there is activity on the list, you
> should find rejects from mail.pouzenc.fr [185.61.116.42] in your logs if the
> problem persists. It does not have IPv6 connectivity yet, sorry.
>
> Be aware that SPF could eat a reply to this email too :o)

Hi Ludovic, many thanks for your report. I've added 148.251.8.16 to
the SPF record for lists.lowrisc.org, which hopefully will fix the
solution for you when the DNS is refreshed.

Best,

Alex



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