Emails go into spam

Emails go into spam

Hi Zoho team, 

I am currently using zoho mail for work. I used Get Response (email marketing software) several times and now all my emails go directly into Gmail spam box. Yes, now I know that was a stupid thing to do. But this is my email for work and it has been printed on all my namecards, so changing it would be troublesome. Is there any solution for my problem?

Thanks a bunch.