cheesegrits
Support Gopher
Have you specified the "button icon" you want to use for the email? By default we use 'envelope' (or 'email', I forget), which will be whatever bootstrap icon set your site template uses. As per the tooltip on the Button Icon setting, you can override this with either a bootstrap icon name, or an icon image name which will be selected using our image folder paths, as described in the wiki.
As for not send, I can't really help as I can't log in to the backend, the URL in your My Sites 404's.
The first thing I would do to improve email is to use the CMandril extension from CompoJoom, which uses Mail Chimp's Mandril system for sending mail. It's free for up to a few tens of thousands of emails per month. Your local delivery system may not be the problem, but even if it isn't, Mandril is a much more reliable and useful way of sending mail (you can track who opens which emails, which addresses bounce, etc). And it also avoids any issues with spam filtering, as you are using a trusted system with a high repuation score, which isn't liable to end up on any spam blacklists.
-- hugh
As for not send, I can't really help as I can't log in to the backend, the URL in your My Sites 404's.
The first thing I would do to improve email is to use the CMandril extension from CompoJoom, which uses Mail Chimp's Mandril system for sending mail. It's free for up to a few tens of thousands of emails per month. Your local delivery system may not be the problem, but even if it isn't, Mandril is a much more reliable and useful way of sending mail (you can track who opens which emails, which addresses bounce, etc). And it also avoids any issues with spam filtering, as you are using a trusted system with a high repuation score, which isn't liable to end up on any spam blacklists.
-- hugh