Quite simple thing, a customer fills out the form, then you answer the customer on the answer button for example. in Outlook.

But the e-mails you send to customers in response to land in SPAM, what can you do so that does not happen, and why?

Can it be that it is up to the last line in the e-mail where the IP and the URL of this form will appear again?

What can I do with it no longer end up in the SPAM e-mails?