async static Task <List <SendDataPoint> > GetSesStatsForAccount(string Account) { string strRoleARN = "arn:aws:iam::" + Account + ":role/" + AssumedRoleName; Amazon.SecurityToken.AmazonSecurityTokenServiceClient stsClient = new Amazon.SecurityToken.AmazonSecurityTokenServiceClient(); var assumeRoleResponse = await stsClient.AssumeRoleAsync(new Amazon.SecurityToken.Model.AssumeRoleRequest { RoleArn = strRoleARN, RoleSessionName = "TempSession" }); SessionAWSCredentials sessionCredentials = new SessionAWSCredentials(assumeRoleResponse.Credentials.AccessKeyId, assumeRoleResponse.Credentials.SecretAccessKey, assumeRoleResponse.Credentials.SessionToken); var regions = new Amazon.RegionEndpoint[] { Amazon.RegionEndpoint.USEast1, Amazon.RegionEndpoint.USWest2, Amazon.RegionEndpoint.EUWest1 }; List <SendDataPoint> lst = new List <SendDataPoint>(); foreach (var region in regions) { Console.WriteLine($"Checking {region.ToString()} for account {Account}"); AmazonSimpleEmailServiceClient sesClient = new AmazonSimpleEmailServiceClient(sessionCredentials, region); var response = await sesClient.GetSendStatisticsAsync(); lst.AddRange(response.SendDataPoints); } return(lst); }