Provided by: chasquid_1.8-1ubuntu0.3_amd64 

NAME
smtp-check - SMTP setup checker
SYNOPSIS
smtp-check [-port port] [-skip_tls_check] domain
DESCRIPTION
smtp-check is a command-line too for checking SMTP setups (DNS records, TLS certificates, SPF, etc.).
OPTIONS
-port port:
Port to use for connecting to the MX servers.
-skip_tls_check:
Skip TLS check (useful if connections are blocked).
SEE ALSO
chasquid(1)
2018-04-02 smtp-check(1)