Enter your MX records in the Account Center under your domain. No need to set up DNS in Plesk unless you know what you are doing. Reset DNS to default in Plesk if you don’t know what you are doing in there.

Create the following 7 MX records in the (mt) Account Center:

1 aspmx.l.google.com.
5 alt1.aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
10 aspmx2.googlemail.com.
10 aspmx3.googlemail.com.
10 aspmx4.googlemail.com.
10 aspmx5.googlemail.com.

Priority: 1, should be entered in the data field preceding the address: aspmx.l.google.com.

The leading numbers: 1,5,5,10,10,10, and 10, denote required priority. The trailing “.” must be in place for each record.