Live video with Tami from Buffer now: Live with Tami from Buffer
Tami from Buffer is live on Substack now: "Live with Tami from Buffer"
Substack <[email protected]>
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Substack presents a live video with Tami from Buffer. The live session is currently underway and available to watch. Tami discusses various topics in the live video.
What the raw message shows
From the headers
- Sent with
-
Substack
See it in the headers
Across Substack's email
- Sends
- About 2 a week
- DMARC
-
Enforced, reject
Mail failing authentication is refused.
The copy
17 words · under a minute to read
Tami from Buffer is live on Substack now: "Live with Tami from Buffer"
Watch the live video
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
-
v566.v5375b7fa.use4.send.mailgun.net
· 159.112.244.66
Substack's sending servers
- SPF
- Pass for mg1.substack.com
- DKIM
-
- Pass signed by mg1.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.
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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 v566.v5375b7fa.use4.send.mailgun.net (159.112.244.66) by [receiver] (cloudflare) id 6lWbt30Ohsmk for <[recipient]>; Tue, 15 Sep 2026 12:17:00 +0000
- Received
- by ce475b64d9e2560d64eb9debbf33ae74f8c52369d182a53b31a4b338dc06f9d4 with HTTP id 6aa93733d0bbd188967e192f; Tue, 15 Sep 2026 12:16:51 GMT
Authentication
- Received-SPF Authentication result
- pass ([receiver]: domain of [recipient]@mg1.substack.com designates 159.112.244.66 as permitted sender) receiver=[receiver]; client-ip=159.112.244.66; envelope-from="[recipient]@mg1.substack.com"; helo=v566.v5375b7fa.use4.send.mailgun.net;
- Authentication-Results Authentication result
- [receiver]; dkim=pass header.d=mg1.substack.com header.s=mailo header.b=hoUgYOtg; dmarc=pass header.from=substack.com policy.dmarc=reject; spf=none ([receiver]: no SPF records found for [email protected]) smtp.helo=v566.v5375b7fa.use4.send.mailgun.net; spf=pass ([receiver]: domain of [recipient]@mg1.substack.com designates 159.112.244.66 as permitted sender) smtp.mailfrom=[recipient]@mg1.substack.com; arc=none smtp.remote-ip=159.112.244.66
Platform
- X-Mailgun-Sid
- WyJhNDNjNiIsImJ1ZmZlckBpbmJveGFyY2hpdmUub3JnIiwiMDcyYzdiIl0=
- X-Mailgun-Sending-Ip
- 159.112.244.66
- X-Mailgun-Batch-Id
- 6aa93733d0bbd188967e192f
- X-Mailgun-Tag
- live-stream-started
- X-Mailgun-Track-Clicks
- false
- X-Mailgun-Variables
- {"category": "live-stream-started", "email_generated_at": "1789474611172", "open_tracking_suppressed": "", "override_tracking_publication_id": "7237049", "subdomain": "www", "user_id": "549683137"}
Unsubscribe and feedback
- Feedback-Id
- no-post:cat-live-stream-started:pub-0:substack
- List-Owner
- <mailto:…@substack.com>
- List-Url
- <https://substack.com/…>
- List-Unsubscribe
- <https://substack.com/…>
- List-Id
- <www.substack.com>
- List-Unsubscribe-Post
- List-Unsubscribe=One-Click
Message
- Sender
- [email protected]
- Mime-Version
- 1.0
- Subject
- Live video with Tami from Buffer now: Live with Tami from Buffer
- From
- Substack <[email protected]>
- Message-Id Identifies Substack
- <[email protected]>
- Date
- Tue, 15 Sep 2026 12:16:51 +0000
- Reply-To
- Substack <[email protected]>
- Content-Type
- text/html; charset="utf-8"
- Content-Transfer-Encoding
- quoted-printable
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