Swiss Army Knife SMTP, the all-purpose SMTP transaction tester. More information: <https://github.com/jetmore/swaks/blob/develop/doc/base.pod>.

• Deliver a standard test email to `[email protected]` on port 25 of `test-server.example.net`:
  swaks --to [email protected] --server test-server.example.net
• Deliver a standard test email, requiring CRAM-MD5 authentication as user `[email protected]`. An "X-Test" header will be added to the email body:
  swaks --to [email protected] --from [email protected] --auth CRAM-MD5 --auth-user [email protected] --header-X-Test "test_email"
• Test a virus scanner using EICAR in an attachment. Don't show the message DATA part:
  swaks -t [email protected] --attach - --server test-server.example.com --suppress-data path/to/eicar.txt
• Test a spam scanner using GTUBE in the body of an email, routed via the MX records for `example.com`:
  swaks --to [email protected] --body path/to/gtube_file
• Deliver a standard test email to `[email protected]` using the LMTP protocol via a UNIX domain socket file:
  swaks --to [email protected] --socket /var/lda.sock --protocol LMTP

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