Often, I see an email in my personal inbox with features or aesthetics I really like at which point I'm curious what the email was built in or with. Is there an easy way to determine what was used for each email?
For example, I noticed that all unsubscribe links with "list-manage.com" in them are from MailChimp based emails. Some links have "/pub/optout" in them, some others have "https://click.email." in them. Alternatively, I tried using the "view in browser" links and using view source but couldn't find anything useful. Are there any dead giveaways to if an email was created in Marketo?