Hi Nadz,
Thank you for reaching out. These forums here are our “Pre-sales Questions” forums, so we unfortunately cannot field technical support questions here.
It doesn’t currently appear that you have a premium license with us. If this is wrong, and you do have a premium license with us, then apologies for my misunderstanding!
However, in that case please log into the account on this site that has your premium license, and then post this question in a premium support forum.
If you indeed do not have a premium license, then please post your question in our free support forums here → http://wordpress.org/plugins/the-events-calendar. We check those forums a bit more than once per week, so hopefully we will be able to get to your question there.
I will close this thread to facilitate the above actions. Before doing so, just to address your question: yes, you can change the “From” email address in the emails that your website sends out.
You will have to add some custom code to your theme’s functions.php file to make such changes. The function you want to filter is called wp_mail which you can read about here.
You’ll want to use a filter like one of these to change the “from” name and “from” email addresses:
• https://codex.wordpress.org/Plugin_API/Filter_Reference/wp_mail_from
• https://codex.wordpress.org/Plugin_API/Filter_Reference/wp_mail_from_name
Best of luck with your customizations,
George