VerifySeal ManagerLive verification platform
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Install an Email Sender Seal in Outlook signature

Add the email-sender seal as a linked signature image in Outlook on the web or desktop.

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Recommended methodEmail-signature linked image
Email-signature installation

Step-by-step instructions

  1. 1

    Edit the account signature

    Open Outlook signature settings for the verified sender mailbox and create or edit its default signature.

  2. 2

    Insert the image

    Insert the seal image using the image URL or a downloaded image generated from the Basic image embed.

  3. 3

    Attach the certificate link

    Select the image and set its hyperlink to the VerifySeal public certificate URL. Do not paste the JavaScript embed.

  4. 4

    Test externally

    Send a message to a mailbox outside the organization and confirm the image and live link survive delivery.

Open Microsoft Outlook signature documentation ↗
Email Sender Verification Seal

The signature image is only one part of verification

The sender domain must continue to publish a valid SPF record, the selected DKIM key and a DMARC policy. VerifySeal automatically rechecks these records according to the administrator schedule. For High Security messages, DKIM must cover the final Message-ID, VEM header and completed body.

  • SPF authorizes sending services
  • DKIM verifies the signed message domain
  • DMARC publishes the domain policy
Testing checklist

Confirm the installation is working

01

Visible

The complete 300 × 106 seal is visible in a received HTML message and is not cropped.

02

Clickable

The image opens the live VerifySeal sender certificate rather than an unlinked copied image.

03

Correct sender

The signature is assigned to the exact verified From address, not another identity or shared mailbox.

04

External test

A message received outside the organization retains the image, hyperlink and passing authentication results.

Platform notes
  • Outlook versions differ. If the editor cannot link an image, use a small linked text line beside the seal as a fallback.
All seal types

View every available VerifySeal design

Domain OwnershipEmail Sender VerificationHigh Security Email VerificationVerified BusinessVerified OrganizationVerified ResellerTrusted WebsiteCertified MemberAustralian Builder LicenceAustralian Financial Services LicenceWebsite PCI DSS ComplianceDocument IntegrityVerified Issuer DocumentHigh Security Document Authentication