I am using sendgrid v6.4.0, sending email using dynamic template to cc & bcc is ignored. Find the payload below -
{
subject: 'Hello world',
message: 'Hello plain world!',
from: 'abcd@abcd.com',
to: 'a@b.com',
cc: 'b@b.com'
bcc: 'c@b.com'
};
CC and BCC is ignored and only email received by a@b.com
Note: I found a similar question question but it was unanswered. sendgrid : add cc in email