Setting Zoho mail on Android

Setting Zoho mail on Android

Hello??!!
never had problems with Activesync on Microsoft phone.
Recently also set up zoho accounts on the pc via outlook with activesync. No problem there.

I bought yesterday a Samsung smartphone to abandone the Microsoft phone.
I cannot set up zoho neither in the email app on the Samsung phone nor in the outlook app on the phone.
I am using activesync, need to keep calendar and contacts updated.
I am following carefully the instructions. It is not the first time I am using the msync server. I was successful on the Microsoft phone and also on Outlook on my pc.

So what is going on? I need to set it up and not to use the Zoho app..

Thanks for the help