haraka-plugin-mail_from.is_resolvable 1.0.2
Install from the command line:
Learn more about npm packages
$ npm install @haraka/haraka-plugin-mail_from.is_resolvable@1.0.2
Install via package.json:
"@haraka/haraka-plugin-mail_from.is_resolvable": "1.0.2"
About this version
This plugin checks that the domain used in MAIL FROM is resolvable to an MX record.
This plugin uses the INI-style file format and accepts the following options:
-
timeout
Default: 30
Maximum limit in seconds for queries to complete. If the timeout is reached a TEMPFAIL is returned to the client.
-
allow_mx_ip=[0|1]
Allow MX records that return IP addresses instead of hostnames. This is not allowed as per the RFC, but some MTAs allow it.
-
reject_no_mx=[0|1]
Return DENY and reject the command if no MX record is found. Otherwise a DENYSOFT (TEMPFAIL) is returned and the client will retry later.
DNS errors always return DENYSOFT, so this should be safe to enable.
