swaks

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