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Email headers used by SparkPost

Jayan Kandathil

First published

SparkPost is a bulk e-mail delivery provider.

RFC 822 defines the standard for Internet email headers. Any header that starts with X- is a custom header.

Use an online tool such as MXToolbox to copy-paste and analyze email headers.

#Mail Header Name
Authentication-Results
Content-Length
Content-Type
DKIM-Signature
From
List-Id
List-Unsubscribe
Message-ID
MIME-Version
Received
Received-SPF
Reply-To
Return-Path
Subject
To
X-Apparently-To
X-Binding
X-Mailfrom
X-MarketoID
X-MktArchive
X-MSFBL
X-Originating-IP
X-YMailISG

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