No one like's to see their email's going into the spam folder.
Here are a few reasons why your emails are going into the spam folder:
You are using Spammy words in the subject line.
You are not following the best practices.
How to fix emails from going to spam, when they are already going to the spam folder.
Try buying another domain from your domain provider.
Warm up your domain.
Send out about 50- 100 emails per day for a few days and slowly move up.
Make sure you are following the best practices.
**No SHAFT content in your emails.
Use this FREE tool to test out your emails for spam.