Mail from zoho shows as spam in Gmail

Mail from zoho shows as spam in Gmail

Recently, I sent a mail from vicky@hitonelectronics.com which is hosted in Zoho mail to my gmail account. But its shown as a spam mail in my gmail account. I tried multiple zoho accounts with various gmail accounts but the same error is shown.

for example,

dilip@hitonelectronics is also showns as a spam in gmail.