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Email activity sending HTML email with signature not showing in Thunderbird email client

Article # 3042880 - Page views: 161


When using the Email activity to send an HTML email that contains an image file in the email signature, the image is showing blank with a place holder.  Attached to this KB article is also a reproduction video to validate if the issue explained is the same.

TS reproduction.jpg



Use any other email client besides Thunderbird like Outlook and the email signature file will show correctly.


Level of Complexity 



Applies to  

Product Version Build Environment Hardware
KTA All      


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Article # 3042880
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