I m using odoo 12.

It seems that marketing emails will 100% be marked as SPAM in hotmail and Gmail.

No matter what content in the mail or how sender/reply address and outgoing server  are set.

While if i send mass maill from Contacts module, google and hotmail will no mark the mail as SPAM.

I guess  some setting in header of marketing meail is the reason.

Can anyone help?Or odoo will fix this?