setting-pinpoint-from-address

$ aws pinpoint get-apps
{
    "ApplicationsResponse": {
        "Item": [
            {
                "tags": {},
                "Id": "APP_PROJECT_IDENTIFIER",
                "Arn": "arn:aws:mobiletargeting:us-east-1:AWS_ACCOUNT_ID:apps/APP_PROJECT_IDENTIFIER",
                "Name": "Example project name"
            }
        ]
    }
}

$ aws pinpoint get-email-channel --application-id APP_PROJECT_IDENTIFIER
{
    "EmailChannelResponse": {
        "FromAddress": "My Display Name <replies@email.example.com>",
        "MessagesPerSecond": 14, 
        "LastModifiedDate": "2019-07-30T20:00:05.858Z", 
        "RoleArn": "arn:aws:iam::AWS_ACCOUNT_ID:role/service-role/pinpoint-events",
        "Enabled": true, 
        "Platform": "EMAIL", 
        "Version": 5, 
        "IsArchived": false, 
        "CreationDate": "2019-07-29T15:09:06.845Z", 
        "ApplicationId": "APP_PROJECT_IDENTIFIER",
        "Id": "email", 
        "Identity": "arn:aws:ses:us-east-1:AWS_ACCOUNT_ID:identity/email.example.com"
    }
}

$ aws pinpoint update-email-channel --application-id APP_PROJECT_IDENTIFIER \ 
    --email-channel-request '{"FromAddress": "My Display Name <replies@email.example.com>", "Identity": "arn:aws:ses:us-east-1:AWS_ACCOUNT_ID:identity/email.example.com", "RoleArn": "arn:aws:iam::AWS_ACCOUNT_ID:role/service-role/pinpoint-events"}'