It appears that Jarland Donnell via mailop said:
>Hey friends,
>
>Do me a favor and search your logs for this domain:
>SIBBERTLLC.onmicrosoft.com
It's not just that subdomain. .onmicrosoft.com is free
throwaway accounts and I've seen the Docusign phish from lots
of them.
It's kind of clever,
First of all, thanks for the multiple and detailed repsonses with error
reports.
Indeed, this is the missing link and we obviously underestimated the
reachability problem we have here on our DNS service.
We already set up a plan to fix the issue and are looking forward
getting this solved.
I also block most mail from Hetzner's network. It's not a vendetta,
it's not extortion, it's purely practical. My time is not unlimited,
the vast majority of the mail from that network is spam and if a tiny
bit of real mail gets lost, so be it. It is not worth my time to make
exceptions in my
Looks like dns.hiskp.uni-bonn.de isn't reachable or responding, which could
explain the intermittent nature.
Graeme
On 12 December 2023 07:57:48 Michael Lang via mailop wrote:
Hi everybody,
for approximately one year, we are receiving regular complaints from
remote contacts having
Am 12.12.2023 um 09:56:00 Uhr schrieb Tobias Herkula via mailop:
> Most likely root cause: "dns.hiskp.uni-bonn.de." does not answer
> queries via UDP,
It also doesn't answer tcp queries, but replies to ICMPv6 echo request.
Sadly, I also don't get an ICMP error message for that.
Check the
This seems to be an issue on your site, I checked the logs and all the times we
were not able to deliver mails to you the error we had was "temporary mx
resolver error".
Most likely root cause: "dns.hiskp.uni-bonn.de." does not answer queries via
UDP, as you also have a couple of more systems
Am 12.12.2023 um 07:37 schrieb Kirill Miazine via mailop:
But we're getting off-topic, my initial post triggered by discovery of
the "new" dnsbl.spam.fail list, which I never had experienced earlier,
and that question has been answered.
For the record, I reached out to Domeneshop yesterday.
Hi everybody,
for approximately one year, we are receiving regular complaints from
remote contacts having problems to ship email from a service like
gmx.de, gmx.net, 1und1.de and similar in fact services hosted by ionos
to our email domain (@hiskp.uni-bonn.de, MX=mx8.hiskp.uni-bonn.de).
