We can’t set the customer email as sender because Amazon secured email service only accepts verified email address (mailer@zotabox.com) to forward you messages from your customers.
We set your customer email in the “Reply-To” field in the email header. So when you click reply, the email will be sent to your customer email address, not our sender email.
Also, when you use our ‘auto-response’ the ‘actual’ sender will be mailer@zotabox.com but your customers will see your email address as the ‘reply to email’ and reply directly to you.
Your visitors will NOT see mailer@zotabox.com when you reply to them.
You can test this by replying to your ‘test email address’.