Example Usage
usage: email-analyzer.py [-h] [--version] -f FILENAME [-H] [-d] [-l] [-a] [-A] [-D] [-i] [-o OUTPUT]

options:
  -h, --help            show this help message and exit
  --version             Show program version and exit
  -f, --filename FILENAME
                        Name of the EML file
  -H, --headers         To get the Headers of the Email
  -d, --digests         To get the Digests of the Email
  -l, --links           To get the Links from the Email
  -a, --attachments     To get the Attachments from the Email
  -A, --authentication  To get the Authentication Results of the Email (SPF, DKIM, DMARC)
  -D, --defang          Defang URLs in Links output (hxxps://, [.] notation)
  -i, --investigate     Activate if you want an investigation
  -o OUTPUT, --output OUTPUT
                        Name of the Output file (Only HTML or JSON format supported)