Imports github.com/aws/aws-sdk-go/aws github.com/aws/aws-sdk-go/aws/session github.com/aws/aws-sdk-go/service/s3 github.com/aws/aws-sdk-go/service/s3/s3manager github.com/aws/aws-sdk-go/service/ses github.com/jhillyerd/enmime gopkg.in/urfave/cli.v1 Standard library imports bytes fmt io log net/mail os path sort strings