SMTP server that convert SMTP message to AWS SES API Call
go build smtp.go
--host HOST SMTP Host (a.g. 127.0.0.1)
--port PORT SMTP port [default: 10025]
--noauth disable SMTP authentication
--plainauth enable SMTP PLAIN authentication
--anonauth enable SMTP anonymous authentication
--user USER SMTP username
--password PASSWORD SMTP password
--region REGION AWS region (a.g. eu-west-1)
--sourcearn ARN AWS Source ARN
--fromarn ARN AWS From ARN
--returnpatharn ARN AWS Return Path ARN
--accesskey ACCESSKEY AWS Access Key
--secretkey SECRETKEY AWS Secret Key
--help, -h display this help and exit