Newsletter-Only Subscriptions for v1.3x

[sambinomio]

Thank you very much for your quick answer, this morning I followed your advices and
it seems that it works now : suddenly I saw in admin that a part of the path of my sidebox :

"sideboxes/my_template/subscribe.php"

became red...

When I activated my sidebox I can see it in left side. I wanted it in the header... I don't know if it's because I copied files the way you told me that now it's available in left side. I continue trying to understand.

Now I tried to subscribe and I receive the following error message.

"ERROR: Failed sending email to: "" with subject: "Please confirm bonaparto newsletter subscription" Could not instantiate mail function."

Is it maybe something related with smtp config ?

Thank