The table below outlines the differences between the Exclaimer Outlook Add-in and the Exclaimer Signature Update Agent:

Feature

Exclaimer Outlook Add-in

Exclaimer Signature Update Agent

Deploy Signatures to Outlook (Desktop)

Yes Yes
Deploy Signatures to Outlook on the web (OWA) Yes No
Deploy Signatures to Outlook for Mac Yes No
Deploy Signatures to Apple Mail No No
Supports Outlook 2016 No Yes
Supports Outlook 2019 and above Yes Yes
Default signatures for new emails Yes Yes
Default signatures for reply emails Yes Yes
HTML Signatures Yes Yes
Plain Text Signatures No Yes
embedded images Yes Yes
linked images Yes Yes
Personal signatures when sending as shared mailboxes Yes Yes
Download signatures for additional mailboxes Yes Yes
Background images with hyperlinks Yes No
Signatures update when changing the from address Yes Yes (requires an additional account to be added to Outlook)
Additional attributes Yes Yes
User Photos Yes Yes
Sent Items are updated with Signature Yes Yes
Send on Behalf N/A N/A
Alias Addresses Yes No
Apply Recipient Settings Client-Side Yes No
Prevent users from changing signature options(Outlook for Windows only) No Yes
Remove all existing signatures from Outlook(Desktop Outlook only) No Yes
Recipient Email Addresses in Feedback Analytics Yes No
Click Tracking Analytics Yes Yes
Other Analytics Features Yes (Where email is routed to Exclaimer) Yes (where the email is routed to Exclaimer)
Diagnostic Logs Yes Yes
Seamless Single Sign-On Yes No
Requires Outlook Restart No

Yes (depending on Settings, and only when Outlook Settings, such as default signatures, are modified)

Synchronization/update frequency Up to one hour

Once every hour (can be triggered manually)