Dmarcian is reporting 12/10 DNS-querying mechanisms at the moment.
https://dmarcian.com/spf-survey/?domain=heartland.com.au
Looking improved, but still not out of the woods.
Cheers,
Luke Thompson
Operations Manager
On 19/10/21 1:14 pm, Andrew Oakeley wrote:
Hi,
It was well more broken earlier, not just the lookup numbers. This was the
earlier state. I was not nit picking. This was proper broken.
v=spf1 _spf_useast2.prod.hydra.sophos.com ip4:124.158.19.168/29
ip4:124.158.19.128/29 include: carsales.com.au emailus.freshservice.com -all
Andy
From: AusNOG <[email protected]> On Behalf Of Noel Butler
Sent: Tuesday, 19 October 2021 10:11 AM
To: [email protected]
Subject: Re: [AusNOG] Anyone knowledgeable from Mimecast here who can contact
me off list?
Andrew,
This is likely off topic for this list, but anyway, since I live on the edge...
By my count there is only 3 not 10 mechanism lookups (and show me an
implementation that actually stops at 10), I'm not so sure they should be
counting the includes includes/a/aaaa's either, only the include itself, as
includes are typically out of your control (it has been a very long time since
I read that RFC so may be wrong)
Anyway, if that was the issue, it would have surfaced long before now surely.
If I was a betting man, I'd say DNS caching is the cause, if I was a betting
man, I'd also be betting someone didnt drop a TTL when preparing for the
change, so will have to wait till records refresh.
Of course all this is assumption because OP never posted the actual error
message.
Cheers
On 19/10/2021 09:07, Andrew Oakeley wrote:
Hi,
If I was you; I would start by fixing your SPF.
This will show you the errors
https://mxtoolbox.com/SuperTool.aspx?action=spf%3aheartland.com.au&run=toolpage
Andrew
From: AusNOG <mailto:[email protected]> On Behalf Of Christopher Scholfield
Sent: Tuesday, 19 October 2021 7:04 AM
To: 'AusNOG Mailing List' <mailto:[email protected]>
Subject: [AusNOG] Anyone knowledgeable from Mimecast here who can contact me
off list?
Yesterday we changed mail filters, Mimecast is the only email provider that has been rejecting our emails due to SPF problems for the last 20 odd hours. Mimecast technical support has told me their customers who aren't getting our emails need to contact them so their tech support can explain how to bypass their mail filters for our mail server.
I'd rather work with someone at Mimecast to resolve the cause of the problem.
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