Working On My Email Open Rate

Right now I'm putting a pause on my list building until I fix my open rate. I sent out a test to my sister's email, but it went to spam. I feel like if I spend money to build my list, it will be a waste unless I fix it.

I'm pretty sure I can fix it, but I need to fix my auto responder campaign and clean my list. I removed most of the old leads that have never opened an email. Hopefully this will help fix my open rate and I can continue building my list.