David Jones wrote:
Would it be beneficial to add a local.cf config option to allow SA to
specify a different DNS server rather than what the OS is using in
/etc/resolv.conf?
IIRC it does, and a quick scan of the Mail::SpamAssassin::Conf man page
turned up:
dns_server ip-addr-port (default: entries provided by Net::DNS)
Specifies an IP address of a DNS server, and optionally its
port number. The dns_server directive may be specified
multiple times, each entry adding to a list of available
resolving name servers. The ip-addr-port argument can either
be an IPv4 or IPv6 address, optionally enclosed in brackets,
and optionally followed by a colon and a port number. In
absence of a port number a standard port number 53 is
assumed. When an IPv6 address is specified along with a port
number, the address must be enclosed in brackets to avoid
parsing ambiguity regarding a colon separator. A scoped
link-local IP address is allowed (assuming underlying
modules allow it).
Examples :
dns_server 127.0.0.1
dns_server 127.0.0.1:53
dns_server [127.0.0.1]:53
dns_server [::1]:53
dns_server fe80::1%lo0
dns_server [fe80::1%lo0]:53
In absence of dns_server directives, the list of name
servers is provided by Net::DNS module, which typically
obtains the list from /etc/resolv.conf, but this may be
platform dependent. Please consult the Net::DNS::Resolver
documentation for details.
-kgd
