How to view headers prior to opening the mail

Is there a way to view a new email’s headers prior to opening the email?

I would rather some potential spam mailers not know that the email has been opened; but would like to know from whom suspicious email is from before opening possibly evil messages.

Some email clients allow you to right click on the email and open the header before the email content itself opens in the separate window.


Yes Donald, the same function is there as well.   Right click on the unopened email and at the drop down menu towards the bottom of the list are two selections; “View mail header” and, “View mail source”.

Hi Donald, hope the above solution resolved this question, please let us know if you come across any other questions or issues, we’ll be happy to help.

Thank you,

There isn’t nearly enough detail in the header view for my satisfaction.  For example in authentication, originating server name and IP address, and SPF validation:

EM Client mail header:

From: “NovaBACKUP Software Bundles” <>

To: “Dennis Grube” <>

Subject: Back It Up Today. Move It Tomorrow. 60% Off Bundle Offer. Be Holiday Ready!

Date: Tue, 10 Nov 2015 17:09:36 +0000

Message-Id: <1425119356.320487671447175376126.Java…>

Reply-To: “” <>

Mime-Version: 1.0

Content-Type: text/html; charset=utf-8

Content-Transfer-Encoding: quoted-printable

Content-Disposition: inline

Outlook mail header includes a LOT of additional information, including:

Return-Path: <v-mfcdbh_cgdobigln_chgbeacm_chgbeacm_…>

Authentication-Results: (amavisd-new);

dkim=pass (1024-bit key);

domainkeys=pass (1024-bit key)

Received: from (

[]) by (Postfix) with ESMTP id B838540B2E8C for

<>; Tue, 10 Nov 2015 12:09:36 -0500 (EST)

DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; s=spop1024;;






DomainKey-Signature: a=rsa-sha1; c=nofws; q=dns; s=spop1024;;




Received: by id h88id019if4v for

<>; Tue, 10 Nov 2015 17:09:36 +0000 (envelope-from


MIME-Version: 1.0

Content-Type: multipart/alternative;


x-mid: 12919575

x-job: 12919575

Feedback-ID: pod5_31766_12919575_660684844:pod5_31766:ibmsilverpop

x-rpcampaign: sp12919575

x-orgId: 31766

List-Unsubscribe: <>

X-MS-Exchange-Organization-AuthSource: mail.contoso.local

X-MS-Exchange-Organization-AuthAs: Anonymous


X-MS-Exchange-Organization-SenderIdResult: Pass

Received-SPF: Pass (mail.contoso.local: domain of designates as permitted sender)

receiver=mail.contoso.local; client-ip=; helo=mail;

X-MS-Exchange-Organization-SCL: 1

X-MS-Exchange-Organization-PCL: 2

X-MS-Exchange-Organization-Antispam-Report: DV:3.3.15328.886;SID:SenderIDStatus Pass;OrigIP:

Hi Dennis,
if eM Client’s solution to this doesn’t work for you and you’re missing something, maybe try posting an idea thread about it so the forum so other users can vote on it and our developers can consider implementing an improvement to this feature.

Best regards,