Unfortunately, there's no option for that. 

We use Mailgun to send our emails. By default, we use your URL @ ghostmonitormail.com - so it will be obvious that your store is sending the email via our service.

You can change in your Settings under 'Site name' what you want to have as a store name - and the result will look  like this:

However, you can always change your reply-to email address in your Settings - My Store - Email settings.

If you have any other questions, please contact us

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