Where can I find sites with sample letters sent by popular services?

Question

Email Marketing

Please tell me the sites where you can view examples of emails sent by popular services like Dropbox, Slack, etc.

Answer 1

Usually, pictures are posted in different collections and the emphasis is on design, i.e. the text of the letters will have to be analyzed by yourself.
Here is the only collection with texts that I know about, I would be grateful if you tell me more:
www.goodemailcopy.com
Here are some collections with examples of email designs:
https://www.mailcharts.com/
https://www.campaignmonitor.com /email-templates/
emailsfresh.com
www.htmlemailgallery.com
htmlemaildesigns.com
beautiful-email-newsletters.com
email-gallery.com

Answer 2

email-competitors.com