How do I setup email configuration for aws cognito user pools?

I am not sure how to setup the "EmailConfiguration" part of the serverless cloudformation resource section. Does anyone have an example on how to do this? Any guidance would be much appreciated!

Here is my serverless.yml file.

service: cognito-email-config
provider:
  name: aws
  runtime: nodejs6.10
  region: us-east-1

plugins:
  - serverless-stack-output

custom:
  output:
    handler: serverless/output.handler
    file: outputs/stack.json

functions:
  preSignUp:
    handler: serverless/preSignUp.handler
  postConfirmation:
    handler: serverless/postConfirmation.handler

resources:
  Resources:
    SESRole:
      Type: "AWS::IAM::Role"
      Properties:
        AssumeRolePolicyDocument:
          Version: "2012-10-17"
          Statement:
            - Effect: "Allow"
              Principal:
                Service:
                  - "cognito-idp.amazonaws.com"
              Action:
                - "sts:AssumeRole"
        Policies:
          - PolicyName: "CognitoSESPolicy"
            PolicyDocument:
              Version: "2012-10-17"
              Statement:
                - Effect: "Allow"
                  Action:
                    - "ses:SendEmail"
                    - "ses:SendRawEmail"
                  Resource: "*"
    CognitoUserPool:
      Type: "AWS::Cognito::UserPool"
      Properties:
        UserPoolName: ${env:COGNITO_USER_POOL}
        EmailConfiguration:
          ReplyToEmailAddress: admin@example.com
          SourceArn:
            Fn::GetAtt: [SESRole, Arn]
        AutoVerifiedAttributes:
          - phone_number
        MfaConfiguration: "OPTIONAL"
        SmsConfiguration:
          ExternalId: ${env:COGNITO_USER_POOL}-external
          SnsCallerArn:
            Fn::GetAtt: [SNSRole, Arn]
        Schema:
          - Name: name
            AttributeDataType: String
            Mutable: true
            Required: true
          - Name: email
            AttributeDataType: String
            Mutable: false
            Required: true
          - Name: phone_number
            AttributeDataType: String
            Mutable: false
            Required: true

after running that i get this error...

Serverless: Deployment failed!

  Serverless Error ---------------------------------------

  An error occurred while provisioning your stack: CognitoUserPool - Email arn does not belong to your account. (Service: AWSCognitoIdentityProvider; Status Code: 400; Error Code: NotAuthorizedException; Request ID: f2b14a38-82a1-11e7-8ea0-eb271a42c298).

  Get Support --------------------------------------------
     Docs:          docs.serverless.com
     Bugs:          github.com/serverless/serverless/issues
     Forums:        forum.serverless.com
     Chat:          gitter.im/serverless/serverless

  Your Environment Information -----------------------------
     OS:                     linux
     Node Version:           8.2.1
     Serverless Version:     1.20.0

ERROR: Job failed: exit code 1

I don't think I am using "SourceArn" of "EmailConfiguration" properly; I just copied the example from SNS to SES (using the gist below) hoping it would work.

Here is aws documentation reference for the resource that I need setup: http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-resource-cognito-userpool.html#cfn-cognito-userpool-emailconfiguration

this has helped me as a reference but doesn't show how to use SES: https://gist.github.com/singledigit/2c4d7232fa96d9e98a3de89cf6ebe7a5