mta-sts-query1
Retrieve mta-sts policy of a domain
Usage
mta-sts-query [OPTION] ...
DOMAIN
[KNOWN_VERSION]
Overview
Retrieve the MTA-STS policy of a domain and display the result on standard output. This diagnostic utility is also useful without Postfix.
MTA-STS, specified in RFC 8461 [0], is a security standard for email servers. When a site configures MTA-STS, other mail servers can require the successful authentication of that site when forwarding mail there.
Options
-
-h, --help -
show a help message and exit
-
-v, --verbosity VERBOSITY -
set verbosity level: debug, info, warn (default), error, or fatal.
DOMAIN
domain for which to retrieve the MTA-STS policy
KNOWN_VERSION
latest known version (default: None)
Examples
Retrieve MTA-STS policy for dismail.de:
mta-sts-query dismail.de
Notes
0.
SMTP MTA Strict Transport Security (MTA-STS): <https://tools.ietf.org/html/rfc8461>
Releases
3 releases since Debian 11 (Bullseye); the text changed 2 times.