Code Blue TOOLVOX X3 - Manual (Page 124)

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ToolVox® X3
Administrator Guide
This will restrict, based on the contents of the map, allowing only senders that are allowed by the
map. The map may contain networks, parent domains, or localpart@.
reject_maps_rbl
reject_invalid_hostname
If the client host name is invalid due to bad syntax, the request will be rejected.
permit_naked_ip_address
If the client HELO or EHLO command contains a naked IP address without the enclosing [] brackets
as required by the mail RFC, the message will be rejected. Beware that some popular mail clients
send a HELO greeting that is broken this way.
reject_unknown_hostname
Reject the request if the host name in the client HELO command has no A or MX record in the DNS.
reject_non_fqdn_hostname
If the client host name is not in the form of a fully-qualified domain name, as required by the RFC,
the message will be rejected.
check_helo_access maptype:mapname
The server will search the named access database map for the HELO host name or parent
domains. If the result from the database search is REJECT or a 4xxtext or 5xx text error code, the
message will be refused. A response of OK or RELAY or an all numerical response will permit the
message.
permit
This simply permits anything. Generally, this will be at the end of a set of restrictions in order to
allow anything that has not been explicitly prohibited.
reject
Rejects everything. This can be used at the end of a chain of restrictions to prohibit anything that
has not be explicitly permitted.
warn_if_reject
This is a special option that changes the meaning of the following restriction, so that a message that
would have been rejected will be logged but still accepted. This can be used for testing new rules on
production mail servers without the risk of denying mail due to a problem with the rules.
reject_unauth_pipelining
If the client sends commands ahead of time without first confirming the server support SMTP
command pipelining, the message will be rejected. This will prevent mail from poorly written bulk
email software that uses pipelining to speed up mass deliveries.