I am only trying whitehat tricks so far myself and I am getting a few opens.
At this point, I am not trying to sell anything and I never will, basically it'll be a newsletter service targeting various niches.
If you think you can help me and create a customized solution, then DM me. I'll forward a copy of this message to your support contact as well.
Do you use your own domain? What email service do you use? Try changing provider. We are using Aweber for all of our emails.
You probably have a URL in your message that is on a blacklist.
There is just one url that leads to a wix subdomain.
And yes I have my own domain and I tried 'sender" domains with sendpulse as well. I need a customized solution.
Try to cloak your wix subdomain through your own domain. Make new folder, and index.php
Make new email and test spam score. If it's under 5 it's good to send and you will get into inbox, if it's above 5 you still have a problem somewhere. Spam score normally tell you why your emails are getting into spam. At least Aweber does. Try aweber for 14 days, or mailchimp is also free for 2000 subscribers I think. I never used sendpulse.