two send grid accounts on same exim

Hi Following the steps below, I was able to have send-grid as my smart-host for one of my domains (on my shared-server). However, now I need to have another website to use send-grid (using different credentials). How shall I separate the config for them? At the moment I have: Section: AUTH sendgrid_login: driver = plaintext public_name = LOGIN client_send = : : Section: PREROUTERS send_via_sendgrid: driver = manualroute domains = ! +local_domains senders = *@ transport = sendgrid_smtp route_list = "* smtp.sendgrid.net::587 byname" host_find_failed = defer Section: TRANSPORTSTART sendgrid_smtp: driver = smtp hosts = smtp.sendgrid.net hosts_require_auth = smtp.sendgrid.net hosts_require_tls = smtp.sendgrid.net
for the 2nd account and domain shall append some character/number to differentiate it from the first or what (say sendgrid1)? sendgrid1_login: send_via_sendgrid1: sendgrid1_smtp: