I am trying to run the email demo, however it does not work,
I think it is because of the email server,
Do you know what email server is able to work without SSL?
You're right, most free public email servers (Gmail, Yahoo, etc) require SSL which that demo does not support.
However most ISP email servers do not use SSL, so you can try the email server for the ISP you are using. Some web hosting services also give you an SMTP server that you can use without SSL, and those only cost a few dollars a month.
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