Have you tried contacting them as per their postmaster page?Postmaster information for iCloud Mail - Apple Supportsupport.apple.comBest,FaisalOn Jun 3, 2024, at 7:15 PM, Scott Mutter via mailop wrote:Anyone from Apple/iCloud able to assist with why certain messages from one of our servers -
Have you tried reaching out to them directly to get more details? I know
they also lurk here, but pretty sure they prefer you contact their team
first and then escalate if necessary.
https://senders.yahooinc.com/contact/
On 5/21/24 8:01 PM, Mark E. Jeftovic via mailop wrote:
Following on my
I know Cloudflare uses Sparkpost's infra to send replies from their
abuse desk system, which is likely what you're seeing.
Received: from mta-87-157.sparkpostmail.com ([192.174.87.157])
by safari.mxrouting.net with esmtps (TLS1.2) tls
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
I am of the opinion you should still submit a ticket - their team will
have more information as to why it was flagged and if it was a false
positive.
On 5/13/24 1:46 PM, Michael E. Weisel via mailop wrote:
Good morning Mailop friends. One of our clients suddenly started
seeing TSS04’s
Also worth noting that it was not rejected at the SMTP stage because the
email address was valid. Google does not check for permissions to post
to the Group until after it has accepted and processed the message,
hence the delayed NDR. The Google rep also may not have had access to
group
Yes, Microsoft 365 has hosted quarantines. There are two types: user facing
where the user gets a digest every day and they can release messages from it
and an admin quarantine, where only the tenant admins have access to (usually
reserved for malware or other high-risk messages land).
> On
> configure DMARC for syniumsoftware.com to accept subdomain signatures.
Uh... that's not configured in the DMARC policy. The sp= directive
states what action to take from subdomains of a domain when a message
fails DMARC. See
https://datatracker.ietf.org/doc/html/rfc7489#section-6.3 and
DKIM is fine at the organizational domain. I do think it's related to
the introduction of new identities, and with time the filters will learn
the reputation of the new identities.
On 4/30/24 12:22 PM, Mendel Kucharzeck via mailop wrote:
Am 30.04.2024 um 12:06 schrieb Matus UHLAR - fantomas
It says it on the new sender guidelines, under "Requirements for all senders"
"If you regularly forward email, including using mailing lists or inbound
gateways, add ARC headers to outgoing email. ARC headers indicate the message
was forwarded and identify you as the forwarder. Mailing list
Postmaster is extremely responsive, and if for some reason they don't reply - I
know the team personally if you need a hand.
Best,
Faisal
On Wed, Jan 31, 2024, at 3:32 PM, Atro Tossavainen via mailop wrote:
> On Wed, Jan 31, 2024 at 02:03:33PM +, Tarun Singh via mailop wrote:
>> Hello
Yes, there's been a few reports elsewhere. As Laura commented somewhere:
"Given the amount of mail I'm getting today I suspect it's just "All lines are
busy. Please try again.""
On Mon, Nov 27, 2023, at 8:01 PM, Jarland Donnell via mailop wrote:
> Anyone else seeing issues connecting to
They started sending 10/2 reports just now. They may start trickling in again
for other days soon.
Best,
Faisal
On Tue, Oct 3, 2023, at 3:38 PM, Jörg Backschues via mailop wrote:
> Am 03.10.2023 um 11:59 schrieb Faisal Misle via mailop:
>
>> We noticed (and looks like so did our
Hi all,
We noticed (and looks like so did our counterparts at Dmarcian) that
Google has not been sending DMARC reports since last week.
I'm going to assume Google is already aware of it and is working to
resume sending and we should treat it like a Postmaster Tools or SNDS
blip and just go with
They're owned by GoDaddy - so maybe someone from GD can help make a connection?
On Fri, May 5, 2023, at 8:45 AM, Thomas Walter via mailop wrote:
> Hello,
>
> On 04.05.23 10:43, Ken Peng via mailop wrote:
>> May 4, 2023 at 4:09 PM, "Thomas Walter via mailop" wrote:
>>>
>>> I am trying to get in
Hi all,
One of our domains, sift [.] red, which we use for our link rewriting
was flagged by those two vendors and it's causing issues for some
customers.
We've requested delistings through their portal, but it's the second
time this year and we'd like a contact to discuss it, as we're in the
Correct, DMARC at none will only send XML reports that tell you if a message
had an aligned SPF/DKIM and if it authenticated properly. It will also show you
if anyone else is sending as your domain that you weren't aware of.
I highly recommend using a tool like Postmark's free DMARC reporting
I see Jarland replied, but the first two are together and run by him.
Porkbun is not related to MXroute - it's a domain registrar/email host combo
based in Portland, OR.
On Tue, Jan 3, 2023, at 9:07 PM, Peter N. M. Hansteen via mailop wrote:
> Does anyone have useful contact info for one or
Just to be sure because I didn't see you mention it, make sure you've contacted
them via the form I often see linked so many different ways:
https://sender.office.com
On Thu, Nov 17, 2022, at 10:26 PM, Ryan Prihoda via mailop wrote:
> `Hey all,`
> ``
> `I received this rejection going to an msn
I only know of four providers that send reports (If anyone knows of any others
- I'm all ears!)
* Google
* Microsoft
* Comcast
* SocketLabs
They likely have their own in-house systems, as they have the resources to do
so.
Best,
Faisal
On Thu, Nov 17, 2022, at 11:22 PM, Muyeed Ali via
If you can still find the original authorization email (yes, I know - probably
unlikely depending on age of setup), there's a link to break it.
Best,
Faisal
On Mon, Oct 24, 2022, at 3:09 PM, Tara Natanson via mailop wrote:
>
> At some point someone set up a gmail address which forwards
They seem to be scanning the inbox for all emails from companies, wether you
have an account or not and then sending a removal request. Most companies will
comply as they're afraid of GDPR, but sometimes you may not even have the
customer in your database.
Automated is not the way, and
Does anyone have the bounce message they're sending back handy?
On 4/19/22 6:36 PM, Jarland Donnell via mailop wrote:
To add +1 experience to this, I've been seeing it intermittently. Some
of my customers who lack SPF absolutely cannot deliver mail to Gmail,
100% rejection due to lack of
Hello all,
Got a quick question regarding the syntax of an MTA-STS policy file.
Example:
version: STSv1
mode: testing
mx: mx.example.com
max_age: 86400
vs.
version: STSv1
mode: testing
mx: mx.example.com.
max_age: 86400
Note the trailing dot on the second policy. Is that a valid MX for the
I'm going to bet it was a DNS resolution issue, both mgm51.com and
mgm51.net were not resolving at all around the time he sent that message.
On 3/27/22 10:19 AM, Gary Gapinski via mailop wrote:
Your message to the list has the header
Received: from oneyou.mgm51.net (*unknown*
Well for starters, I can't resolve mgm51.com's DNS records, which could
very well be a factor - unless you're not using that domain to send to him.
Second, have you tried opening a ticket with their postmaster team at
https://senders.yahooinc.com/contact ?
On 3/26/22 9:55 PM, Mike via mailop
That looks like Sendgrid, so they may be able to ping United.
I have the contact of their CTO, but you may get quicker help from
SendGrid.
On 1/20/22 2:04 PM, Glowfish Domainadministrator via mailop wrote:
Hi,
Emails from united are getting rejected by our postfix mailserver. The
mails
They do. Those servers then forward to Google Workspace, likely a spam
filter or similar.
On 1/18/22 9:06 PM, John Levine via mailop wrote:
It appears that Michael Peddemors via mailop said:
Serious?
: host aspmx.l.google.com[2607:f8b0:4023:c0b::1a] said:
Why do they have their abuse email
Hello all,
We've been noticing a trend where 'data brokers' with fake
americanized names in India buy domains and bundle sign up for Office
365 tenants through GoDaddy and start sending spam.
What is the best way to report those? I've reported the tenant to
Microsoft and the domain to GoDaddy,
I agree with Brielle. Couldn't have said it better myself. It is getting tiring.
On Mon, Oct 4, 2021 at 4:18 PM, Brielle via mailop wrote:
> On 10/4/21 2:46 PM, Jaroslaw Rafa via mailop wrote:
>> It's YOU, GOOGLE, who made me that "low reputation" by consistently putting
>> my messages to spam.
That usually means the address does not exist in Office 365.
On Tue, Sep 28, 2021 at 11:37 AM, Slavko via mailop wrote:
> Hi,
>
> my rua report was rejected at RCPT stage with:
>
> SMTP error from remote mail server after RCPT
> TO::
> 550 5.4.1 Recipient address rejected: Access denied.
+1 for FastMail, can't believe I forgot about them! They're awesome.
‐‐‐ Original Message ‐‐‐
On Monday, September 6th, 2021 at 6:40 PM, Byron Lunz via mailop
wrote:
> What about fastmail.com ?
>
> On Mon, Sep 6, 2021 at 3:59 PM Anne P. Mitchell, Esq. via mailop
> wrote:
>
>> All,
>>
Apart from the buck a month web hosts, the only one that comes to mind is
MXRoute (their main guy is often on this list)
I used to recommend Rackspace, but not too sure about the long term future of
their email hosting division. (Disclaimer: I worked there for three years)
On Mon, Sep 6, 2021
All of my customers do. We have them ramp up in their policy slowly over 4ish
weeks to see if any missed sources get quarantined.
On Thu, Aug 19, 2021 at 9:48 PM, John Levine via mailop
wrote:
> It appears that Zack Aab via mailop said:
>>
>>It's mostly to assuage the fears of large senders
Hi Liam,
I'll send you a contact off-list.
*Faisal Misle*
Customer Success Engineer | Red Sift
On Thu, May 13, 2021 at 4:53 PM, Liam Fisher < mailop@mailop.org > wrote:
>
> I had my IP range delisted from the Spamhaus PBL a few weeks ago.
> Rackspace/emailsrvr.com
> (
.us domains are required to have an open WHOIS this is what I found -
looks like a typical indian spam operation:
Registrant Name: Anand Mathur
Registrant Organization: AMP
Registrant Street: Rohini Complex,Shakarpur Khas,New Delhi.
Registrant Street:
Registrant Street:
Registrant City: New
Hello all,
Are the usa.net / mbox.net domains part of BAE's Email Security system?
My sleuthing also directed me to a company called SilverSky. Did BAE sell
the division to them, or are they just a reseller?
Thanks!
*Faisal Misle*
Customer Success Engineer | Red Sift
--
Red Sift is the
Microsoft does do domain verification on Office 365, usually via TXT
(MS=9)
It's also possible it can be due to a forwarder on one of the recipient's
mailboxes.
*Faisal Misle*
Customer Success Engineer | Red Sift
On Mon, Sep 14, 2020 at 12:49 PM Phil Pennock via mailop
wrote:
>
They seem to be a Cisco shop, so it’s likely the Cisco Appliance is sending
them it as it considers the RUA address another user
On Fri, Sep 4, 2020 at 12:09 PM, vom513 via mailop wrote:
>> On Sep 4, 2020, at 12:30 PM, John Levine via mailop
>> wrote:
>>
>> In article ,
>> vom513 via mailop
Checking my Proofpoint PPS cluster, a bunch of Sendgrid phishing emails are
being rejected by PDR, meaning they're already blocked at the IP level.
mxa-0058bc01.gslb.pphosted.com:[205.220.165.245] : 554 Blocked - see
https://ipcheck.proofpoint.com/?ip=192.254.123.97
Best,
Faisal
PGP Key:
We usually route them through our TAM and our Premier team when I worked at
Rackspace.
Don’t think there’s a place for ISPs
Best,
Faisal
PGP Key: [C8FD029B](https://pgp.faisal.ec/)
On Fri, Jul 24, 2020 at 3:37 PM, Kevin A. McGrail via mailop
wrote:
> Microsoft's anti-spam seems to be
I also strongly recommend you start signing with DKIM. You may not have had a
use for it, but now you do.
Best,
Faisal
PGP Key: [C8FD029B](https://pgp.faisal.ec/)
On Fri, Jul 24, 2020 at 4:45 AM, Andrew C Aitchison via mailop
wrote:
> On Fri, 24 Jul 2020, Klaus Ethgen via mailop wrote:
>
>>
Have you tried journal rules?
https://docs.microsoft.com/en-us/exchange/security-and-compliance/journaling/configure-journaling
Best,
Faisal Misle
MCSA: Office 365
PGP Key: [C8FD029B](https://pgp.faisal.ec/)
On Tue, Jul 7, 2020 at 6:20 AM, Stefan Bauer via mailop
wrote:
> Hi,
>
> there is a
Have you tried ipcheck.proofpoint.com?
Best,
Faisal
PGP Key: [C8FD029B](https://pgp.faisal.ec/)
On Wed, Jun 24, 2020 at 9:36 AM, Kris von Mach via mailop
wrote:
> Hi,
>
> Could someone please contact me from Proofpoint off-list.
>
> It's about a block on one of our IPs.
>
> I've tried
I’ve had mixed luck... sometimes it auto replies, sometimes it doesn’t.
I sometimes wonder if their Proofpoint gateway is quarantining them - or if
they added a bypass rule for their abuse mailbox (as it should be)
Best,
Faisal
PGP Key: [C8FD029B](https://pgp.faisal.ec/)
On Wed, Jun 17, 2020
I’ve been seeing it too... Mailgun, PayPal, etc
A SG rep replied to a SDLU thread yesterday about the same issue
“We are working to get a handle on this on a few fronts. These senders in
this thread have been banned. I don't have insight into the compliance
side, but it is being worked on."
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