Hi,
I wondered if someone from Charter/Spectrum can contact me regarding
some rate-limiting issues please?
Based on previous discussions on this list, I am hoping someone is
lurking that can help me :)
Thanks,
Andy
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Hi all,
Has anyone seen an uptick in bounces in the last day or so to cox.net?
We're seeing many (but not all) emails bounce, showing what are
described as SPF/DKIM failures (AUP#CXSNDR), but as far as we can tell
the emails should authenticate correctly. IP range is 78.143.254.0/24.
Is ther
Many thanks to Cox for a quick and effective response. This issue has
now been resolved.
Andy
On 28/02/2024 14:04, Simplelists - Andy Beverley via mailop wrote:
Hi all,
Has anyone seen an uptick in bounces in the last day or so to cox.net?
We're seeing many (but not all) emails b
On 05/09/2024 14:53, Julian Bradfield via mailop wrote:
I've had a bounce from a mimecast hosted domain that I don't
understand, and should be grateful for any help. I'm redacting
localparts, but nothing else.
[...]
The help reference says that this means the SPF check in DMARC
fails. Well, o
Hi,
Can someone point me in the direction of how to remove a whole IP block
from the Spamhaus PBL please?
We have just taken on a new /24 and it is currently listed in PBL
(presumably because it was previously unused). The removal form states
"Removal of IP addresses within this range from t
*From:* mailop on behalf of Simplelists -
Andy Beverley via mailop
*Sent:* Wednesday, September 7, 2022 7:05:46 PM
*To:* mailop@mailop.org
*Subject:* [mailop] Removing a block from Spamhaus PBL
Hi,
Can someone point me in the direction of how to remove a whole IP block
from the
On 07/09/2022 17:32, Grant Taylor via mailop wrote:
On 9/7/22 7:48 AM, Suresh Ramasubramanian via mailop wrote:
You can contact them and say the netblock has changed hands - and
changed PTR as well hopefully
+1 to contacting Spamhaus and (politely) asking what they want you to do
to achieve y
On 25/11/2024 10:32, Ralph Seichter via mailop wrote:
* Simplelists - Andy Beverley via mailop:
We only rewrite the from address if required because of DMARC, but the
statement above implies that a special case needs to be made when
delivering to Yahoo.
Are you sure you are interpreting
On 25/11/2024 16:33, Mark Fletcher wrote:
For years, Yahoo has rejected mailing list email with From lines from
domains with a DMARC record with p=reject or p=quarantine. We identified
a Yahoo policy change in early November, affecting handling of mailing
list email from domains with a DMARC re
Hi all,
I spotted this on the Yahoo SMTP error codes webpage[1] today:
For mailing lists, also known as “listservs,” you should change your
sending behavior by adding the mailing lists' address to the “From:”
line, rather than the sender's address. Also, enter the actual
user/sender addr
On 26/11/2024 14:16, Carsten Schiefner via mailop wrote:
For the most part, in my experience, the largest ESPs are very good.
[...] Apple iCloud is also good, although their bounce reasons are
very opaque. [...]
They are precisely the reason that I started this (sub-) thread - as
even after m
On 28/12/2024 01:17, Sabahattin Gucukoglu via mailop wrote:
Subject says it all, really: what's the minimum you have to do these
days to get a new IP (that's not otherwise policied, SMTP portblocked
and has working FCRDNS, obviously) past most filters out of the gate, at
least past SMTP rejecti
Hi all,
I wondered if anyone else has observed what appears to be DMARC records
intermittently disappearing for domains that are hosted at Proofpoint?
I.e. many domains have a DMARC record such as:
IN CNAME _dmarc.xxx.com.dmarc.has.pphosted.com
The associated TXT record for _dmarc.xxx.com.
On 03/04/2025 18:14, John Levine via mailop wrote:
It appears that Simplelists - Andy Beverley via mailop
said:
A query for _dmarc.gcu.edu.dmarc.has.pphosted.com results in a NOERROR
response, while a query for its ancestor, edu.dmarc.has.pphosted.com,
returns a name error (NXDOMAIN), which
On 03/04/2025 18:14, Slavko via mailop wrote:
Some years ago i had not competent DNS provider, which resulted
in similar issue -- eg. unbound refused to process that record(s)
(in my case it was DKIM records). IIRC, it had something with empty
non-terminal records and PowerDNS with SQL backend (o
On 03/04/2025 15:17, Bastian Blank via mailop wrote:
That's why example.{com,net,org}[RFC2606] exists. No need to guess
then. xxx.com on the other side is a pretty valid domain.
Fair point, noted.
Here's a real example, using an organization that is listed publicly as a
Proofpoint customer:
On 03/04/2025 11:06, Simplelists - Andy Beverley wrote:
Here's a real example, using an organization that is listed publicly as
a Proofpoint customer:
IN CNAME _dmarc.gcu.edu.dmarc.has.pphosted.com.
The record is correct at the time of writing, but if it's anything like
the others then it
On 03/04/2025 09:50, Bastian Blank via mailop wrote:
On Thu, Apr 03, 2025 at 09:34:07AM +0100, Simplelists - Andy Beverley via
mailop wrote:
I wondered if anyone else has observed what appears to be DMARC records
intermittently disappearing for domains that are hosted at Proofpoint?
I.e. many
Hello all,
I'm wondering whether anyone else has experienced what seems to be a
strange rejection policy at Yahoo.
Firstly a big shout out to the Yahoo support team - whilst they couldn't
resolve this issue, they did at least make it possible to speak to them
and they did try and help.
The
On 16/05/2025 22:49, Al Iverson via mailop wrote:
IMHO the days of sending as a domain where you can't authenticate it
directly with aligned DKIM are over. A lot of ESPs nowadays just
rewrite the visible from domain unless DKIM is specifically configured
appropriately. No other workarounds, no se
On 16/05/2025 22:30, Mark Fletcher via mailop wrote:
The problem, in short, is that when delivering list emails, Yahoo
requires the header-from email address to be rewritten for some domains
but not others (regardless of DMARC policy).
Yes, we saw that, starting in early November of
On 17/05/2025 18:58, Al Iverson via mailop wrote:
On Sat, May 17, 2025 at 2:52 AM Simplelists - Andy Beverley via mailop
wrote:
On 16/05/2025 22:49, Al Iverson via mailop wrote:
IMHO the days of sending as a domain where you can't authenticate it
directly with aligned DKIM are over. A l
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