The full information of their sign-up would be included with their actual contact info, but you wouldn't be getting individualized emails from us with all those contacts' details listed out.
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If you're wanting to use code to pull info from outside sources, then that would require the custom code editor, and thus require building your email 100% from HTML coding you provide.
The regular email editor can have images and other elements inserted into it, but otherwise wouldn't really be compatible with anything that constantly scripts in 3rd party material.
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