It has been done by some DA users. As far as I know it requires 1) modifying exim conf 2) validating each domain with amazon.
Some work can be found at
https://github.com/PayRequest/Amazon-SES-Directadmin-Hook
I don't use it myself so I don't know all the details.
Edit: I asked the author, he gave this
Code:
nano /etc/exim.authenticators.post.conf
ses_login:
driver = plaintext
public_name = LOGIN
client_send = : publickey : key
nano /etc/exim.transports.pre.conf
ses_smtp:
driver = smtp
port = 587
hosts_require_auth = $host_address
hosts_require_tls = $host_address
nano /etc/exim.routers.pre.conf
send_via_ses:
driver = manualroute
domains = ! +local_domains
condition = ${if match_domain{$sender_address_domain}{+local_domains}}
transport = ses_smtp
route_list = * email-smtp.eu-west-1.amazonaws.com
So I guess you have to dig into this thing, understand it and explore if it's something you want to use in the first place like
@mxroute says.