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Friday, Oct 30, 2026 at 6:36 PM EasternMailchimp

UpworkAn unknown device or browser has been used to access your account

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An unknown device or browser has been used to access your account - email from Upwork

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Subject: An unknown device or browser has been used to access your account
Preview text: An unknown device or browser has been used to access your account Reset your password if…
From: donotreply@upwork.com
Brand: Upwork
ESP: Mailchimp
Sent: Fri Oct 30, 2026, 6:36 PM ET
Size: 20 KB
Images: 2
Links: 6
Subject length: 65 characters

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From: Upwork Notification <[email protected]>
Subject: An unknown device or browser has been used to access your account
Date: Fri, 30 Oct 2026 22:36:24 +0000
Message-ID domain: mg.upwork.com
Return-Path domain: mg.upwork.com
DKIM signature: d=mg.upwork.com s=k1; d=mailgun.org s=mg
Authentication: dkim=pass (mg.upwork.com), dkim=pass (mailgun.org), spf=pass (mg.upwork.com), dmarc=pass (upwork.com)
Feedback-ID sender: mailgun

Servers it passed through, newest first

from c67.….usw1.send.mailgun.net [198.244.56.67] by our receiving server with UTF8SMTPS
by … with HTTP

Other sending headers (names only): X-Mailgun-Sid, X-Mailgun-Sending-Ip-Pool-Name, X-Mailgun-Sending-Ip-Pool, X-Mailgun-Sending-Ip, X-Mailgun-Tag, X-Mailgun-Drop-Message, X-Mailgun-Variables

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