MTA-STS-QUERY(1) mta-sts-query MTA-STS-QUERY(1)
NAME
mta-sts-query - retrieve MTA-STS policy of a domain
SYNOPSIS
mta-sts-query [OPTION]... DOMAIN [KNOWN_VERSION]
DESCRIPTION
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
SEE ALSO
mta-sts-daemon(1), mta-sts-daemon.yml(5)
NOTES
0.
SMTP MTA Strict Transport Security (MTA-STS):
https://tools.ietf.org/html/rfc8461
postfix-mta-sts-resolver 2022-10-15 MTA-STS-QUERY(1)
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