Beta testing is torture.

See what we put our trucks through to earn their stripes.

Tue, Aug 18 · 5:34am ET Other

Sent with Salesforce Marketing Cloud Sends about 2 a week All facts

Slate Auto promotes the rigorous testing of their trucks in extreme conditions, including cold and hot temperatures. The company highlights the beta testing phase, where every assumption is tested and perfected. Slate Auto invites customers to secure their truck and follow the brand for updates.

What the raw message shows

From the headers

Sent with: Salesforce Marketing Cloud See it in the headers

Across Slate Auto's email

Sends: About 2 a week
DMARC: Enforced, quarantine
Mail failing authentication goes to spam.

The copy

115 words · under a minute to read · 5 buttons

Button BETA TORTURE TESTING. NO SHORTCUTS.

Beta Phase is where the Slate stopped being a model and started becoming an actual truck. Every single assumption was torture tested, then perfected.

Button IN THE COLD

Last winter, we took our Beta vehicles into real world freezing conditions. SEE FOR YOURSELF.

Button IN THE HEAT

We also tested our trucks in the unrelenting heat of Arizona and Nevada. Spoiler alert — our trucks kept their cool: WATCH SLATE’S “HOT TRIP” OUT WEST.

Button FOR THE LONG HAUL

Before these trucks reach you, they’ll have completed thousands of component tests designed to make sure they’ll stand up to whatever you throw at it – and then some.

Button SECURE YOUR SLATE

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

mta.e.slate.auto · 128.245.255.166

Salesforce Marketing Cloud's sending servers

SPF

Pass for bounce.e.slate.auto

DKIM

Pass signed by slate
Pass signed by s13.y.mc.salesforce.com

DMARC

Pass for e.slate.auto

Policy: reject

Unsubscribe

One-click

Meets the Gmail and Yahoo rule for bulk senders.

Complaints

No feedback-loop header

Show all 15 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 mta.e.slate.auto (128.245.255.166) by [receiver] (cloudflare) id Dk9m7MDzL6vZ for <[recipient]>; Tue, 18 Aug 2026 15:34:38 +0000
Received: by mta.e.slate.auto id hghtos39mjca for <[recipient]>; Tue, 18 Aug 2026 15:34:38 +0000 (envelope-from <[email protected]>)

Authentication

Received-SPF Authentication result: pass ([receiver]: domain of [email protected] designates 128.245.255.166 as permitted sender) receiver=[receiver]; client-ip=128.245.255.166; envelope-from="[email protected]"; helo=mta.e.slate.auto;
Authentication-Results Authentication result: [receiver]; dkim=pass [email protected] header.s=13dkim1 header.b=pB75osOv; dkim=pass header.d=s13.y.mc.salesforce.com header.s=fbldkim13 header.b=RcdrBYMr; dmarc=pass header.from=e.slate.auto policy.dmarc=reject; spf=none ([receiver]: no SPF records found for [email protected]) smtp.helo=mta.e.slate.auto; spf=pass ([receiver]: domain of [email protected] designates 128.245.255.166 as permitted sender) smtp.mailfrom=bounce-UC5XTRAITHKUJKSPDQIDXNQTVQ.130027@bounce.e.slate.auto; arc=none smtp.remote-ip=128.245.255.166

Platform

X-SFMC-Stack Identifies Salesforce Marketing Cloud: 13
x-job: 546008123_166357

Unsubscribe and feedback

List-Unsubscribe: <https://click.e.slate.auto/…>, <mailto:…@leave.e.slate.auto>
List-Unsubscribe-Post: List-Unsubscribe=One-Click

Message

From: "Slate Auto" <[email protected]>
Subject: Beta testing is torture.
Date: Tue, 18 Aug 2026 09:34:38 -0600
MIME-Version: 1.0
Reply-To: "Slate" <[email protected]>
Message-ID: <[email protected]>
Content-Type: multipart/alternative; boundary="aPzltw5LaGF5=_?:"

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