Skip to content

A CEO tried to bully a journalist into silence. He failed.

This week, we notched another win for free speech

Sent with Substack Sends about 1 a week All facts

Substack promotes its Substack Defender program, which provides legal support to independent journalists facing spurious lawsuits from powerful individuals. The program is highlighted through a recent court win, where a defamation suit against a journalist and Substack was deemed without merit. Substack will use recouped legal fees to defend the next journalist in need.

What the raw message shows

From the headers

Sent with
Substack See it in the headers

Across Substack's email

Sends
About 1 a week
DMARC
Enforced, reject

Mail failing authentication is refused.

The copy

369 words · about 2 min to read · 2 buttons

Forwarded this email? Subscribe here for more

A CEO tried to bully a journalist into silence. He failed.

This week, we notched another win for free speech

READ IN APP

This week marked a big win for independent journalists and First Amendment rights.

On Wednesday, the California First District Appellate Court affirmed that the defamation suit brought by tech CEO Maury Blackman against journalist Jack Poulson and Substack was without merit. In his Substack, All-Source Intelligence, Poulson reported that Blackman was arrested in 2021 on suspicion of domestic violence. Because Blackman was the president and CEO of Premise Data, a company with ties to the government and U.S. military, the court confirmed that his arrest records were matters of public interest and that the First Amendment protected Poulson’s work.

We started Substack Defender to assist independent journalists facing exactly these kinds of threats: spurious lawsuits from executives, politicians, or other powerful people who abuse the legal system in an effort to shut writers up. Lawsuits like this are daunting for journalists—even if their reporting is fully protected by the First Amendment, the prospect of having to pay hundreds of thousands of dollars in legal fees can make it impossible to do their work. That’s where provisions like anti-SLAPP laws come into play, and where programs like Substack Defender make a difference. We take great pleasure in using our resources to help protect writers from being bullied in this way. And it’s gratifying that in this case, the court not only agreed but upheld the awarding of attorney’s fees to the defendants.

We will be putting the $240,000 in legal fees we’ll be recouping toward defending the next independent journalist who someone powerful tries to silence.

The Substack Defender program offers access to legal support as part of our efforts to uphold a free press and free speech, which we believe are fundamental to a trustworthy media system. The program provides crucial legal protection for Substack publishers against certain types of claims, including access to advice and financial support for publishers who face legal uncertainty or pressure because of their work.

Button Learn more

Thanks for subscribing to On Substack. This post is public, so feel free to share it.

Button Share

The words as text: what a screen reader can follow, and all there is when images don't load.

What the headers say

Read from the message's own headers, as it arrived.

Came from
v552.v56063cb6.use4.send.mailgun.net · 143.55.229.52

Substack's sending servers

SPF
Pass for mg-d0.substack.com
DKIM
  • Pass signed by mg-d0.substack.com
DMARC
Pass for substack.com

Policy: reject

Unsubscribe
One-click

Meets the Gmail and Yahoo rule for bulk senders.

Complaints
Feedback loop set up

Mailbox providers can report spam complaints straight back to the sender.

Show all 28 headers

As received, minus the delivery side: the archive's own addresses show as [recipient], its mail servers as [receiver], signatures are left out and unsubscribe links trimmed to their host.

Route

Received
from v552.v56063cb6.use4.send.mailgun.net (143.55.229.52) by [receiver] (cloudflare) id O6yniYpmnJWC for <[recipient]>; Fri, 02 Oct 2026 18:24:15 +0000
Received
by 6f73d7e0a0bc69ee77bc43af231006b9f22d6bd749111540c799e5831aad52ed with HTTP id 6abff6d9b5b913ce3eb66d44; Fri, 02 Oct 2026 18:24:25 GMT

Authentication

Received-SPF Authentication result
pass ([receiver]: domain of [recipient]@mg-d0.substack.com designates 143.55.229.52 as permitted sender) receiver=[receiver]; client-ip=143.55.229.52; envelope-from="[recipient]@mg-d0.substack.com"; helo=v552.v56063cb6.use4.send.mailgun.net;
Authentication-Results Authentication result
[receiver]; dkim=pass header.d=mg-d0.substack.com header.s=mailo header.b=Z6z2xUoD; dmarc=pass header.from=substack.com policy.dmarc=reject; spf=none ([receiver]: no SPF records found for [email protected]) smtp.helo=v552.v56063cb6.use4.send.mailgun.net; spf=pass ([receiver]: domain of [recipient]@mg-d0.substack.com designates 143.55.229.52 as permitted sender) smtp.mailfrom=[recipient]@mg-d0.substack.com; arc=none smtp.remote-ip=143.55.229.52

Platform

X-Mailgun-Sid
WyJhZGJlMCIsInN1YnN0YWNrQGluYm94YXJjaGl2ZS5vcmciLCI2M2FmNWQiXQ==
X-Mailgun-Sending-Ip
143.55.229.52
X-Mailgun-Batch-Id
6abff6d9b5b913ce3eb66d44
X-Mailgun-Tag
post
X-Mailgun-Track-Clicks
false
X-Mailgun-Variables
{"category": "post", "email_generated_at": "1790965465580", "is_freemail": "true", "open_tracking_suppressed": "", "post_audience": "everyone", "post_id": "218520648", "post_type": "newsletter", "pub_community_enabled": "true", "publication_id": "1", "subdomain": "on", "user_id": "527064826"}

Unsubscribe and feedback

Feedback-Id
post-218520648:cat-post:pub-1:substack
List-Owner
<mailto:…@substack.com>
List-Url
<https://on.substack.com/…>
List-Archive
<https://on.substack.com/…>
List-Id
<on.substack.com>
List-Post
<https://on.substack.com/…>
List-Unsubscribe
<https://on.substack.com/…>
List-Unsubscribe-Post
List-Unsubscribe=One-Click

Message

Mime-Version
1.0
Content-Type
multipart/alternative; boundary="517e0343e1c458a08a20a907fbd99d72f1f5a7651afd09a53f69b4d4e09c"
Subject
A CEO tried to bully a journalist into silence. He failed.
From
Substack <[email protected]>
Message-Id Identifies Substack
<[email protected]>
Date
Fri, 2 Oct 2026 17:10:42 +0000
Sender
Substack <[email protected]>
References
<[email protected]>
In-Reply-To
<[email protected]>
Reply-To
Substack <reply+3m3nm0&8psttm&&12800cb773d0dcd8af733b4cd53bea24db94cd0bafb5c3ffd9e965512fdadbe6@mg1.substack.com>

More from Substack

All 16 emails
Substack

Model Behavior: George Saunders

Substack

Open Tabs with Kevin Indig

Substack

💬 New thread from Tami from Buffer

Substack

🎉 You can now post Substack Notes through Buffer

Similar campaigns from other brands

Different brands running the same play. Compare any of them side by side.

Morning Brew

☕ The in(box) crowd

Compare

Archived for reference and commentary. Substack, its logos and content are the property of their respective owners; Inbox Archive claims no affiliation and has disabled all links. If you own this content and would like it removed, get in touch.