the delivery of e-mail is occurring with problems, some messages sent have been classified as spam in the recipients email box, also I am also receiving the following message: "Mail Delivery Status Notification (Delay)"

in the last week I successfully enabled dkim, however I use gmail integration with zohomail. I use gmail as an email tool but my MX is zoho.

I have successfully added the zoho account in the gmail tool and my POP and SMTP settings in gmail are:

Outgoing Server Name: smtp.zoho.com

port 465 - SSL

Incoming Server Name:poppro.zoho.com

port:995

Require SSL: Yes

my domain is marciafiorini.com.br