Asset share link mail template modification.

When we share any asset to any user from share link option present on the top navigation bar in AEM DAM. User recieve a mail in which by default template structure defined in AEM. I managed to modify most of the content. In mail there is Adobe Marketin logo which we have to replace with client logo. Adobe Marketing logo is coming from below code.

<td style="width:50px;"><img alt="Adobe Marketing Cloud" src="https://login.marketing.adobe.com/etc/mac/emailimages/mac.png" style="display:block; vertical-align:top;width:50px;height:50px"></td>

I tried modifying src with different paths of jcr but it didn't work. Can i get any suggestion for this?