Why auto-reponder sends email to SPAM inbox?

i am trying to set an auto-responder to a form and the auto-respond email ends in SPAM inbox...i am sending it with my domain garantiasyavales.com that is new (one month) so cannot be on any blacklist so soon. 

Thanks

You have added your email address as the sender through verification method. We used Sendmail for this method. If you are not receiving it to your inbox, then the email may have filtered as spam per your email settings or per your hosting settings.

You have links in your autoresponder and as we all know, links are one of the common reasons why emails will go to someone's spam folder. Since your autoresponder is customized, I would suggest checking the following link for tips on how to avoid the issue:

http://www.activecampaign.com/help/improving-delivery/

Lastly, you can also setup an SMTP in your forms. This would also help you prevent the issue. We have two methods:

a. http://www.jotform.com/help/244-How-to-Setup-SMTP-for-a-Form

b. http://www.jotform.com/help/236-How-to-use-Mandrill-to-Send-Emails-From-Your-Own-Email-Address 

Let us know if you need any further assistance.

Thank you.