I use email templates to send price estimates to my leads.

But recently all mail that is send via zoho goes to spam for gmail and hotmail users maybe others as well

I use Google apps for my mail system and have  v=spf1 inc lude:_spf. google.com  ~all and  v=spf1 mx include:zoho.com ~all
in my DNS but all still goes to SPAM

If i send the exact same mail not using ZOHO it does NOT go to spam.

What can i do please help.