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Man Pages

Manual Reference Pages  -  SPAMASS-MILTER (1)


spamass-milter - sendmail milter for passing emails through SpamAssassin


See Also


spamass-milter -p socket [-b-|-B spamaddress] [-C-rejectcode ] [-d debugflags] [-D host] [-e defaultdomain] [-f] [-i networks] [-m] [-M] [-P pidfile] [-r nn] [-r-rejectmsg ] [-u defaultuser] [-x] [-S-/path/to/sendmail ] [-- spamc flags ...]


The spamass-milter utility is a sendmail milter that checks and modifies incoming email messages with SpamAssassin.

The following options are available:
-p socket
  Specifies the pathname of a socket to create for communication with sendmail. If it is removed, sendmail will not be able to access the milter. This may cause messages to bounce, queue, or be passed through unmiltered, depending on the parameters in sendmail ’s .cf file.
-b spamaddress
  Redirects tagged spam to the specified email address. All envelope recipients are removed, and inserted into the message as X-Spam-Orig-To:’ headers.
-B spamaddress
  Same as -b , except the original recipients are retained. Only one of -b and -B may be used.
-C rejectcode
  Mail that is rejected is rejected by default with a 5.7.1 code. This option allows that to be overridden. See also, -R -S option.
-d debugflags
  Enables logging. debugflags is a comma-separated list of tokens:
func Entry and exit of internal functions.
misc Other non-verbose logging.
net Lookups of the ignored netblocks list.
poll Low-level I/O to the child spamc process.
rcpt Recipient processing.
spamc High-level I/O to the child spamc process.
str Calls to field lookup and string comparison functions.
uori Calls to the update_or_insert function.
1 (historical) Same as func,misc.
2 (historical) Same as func,misc,poll.
3 (historical) Same as func,misc,poll,str,uori.
-D host
  Connects to a remote spamd server on host, instead of using one on localhost. This option is deprecated; use -- -d host instead.
-e defaultdomain
  Pass the full user@domain address to spamc. The default is to pass only the username part on the assumption that all users are local. This flag is useful if you are using an SQL (or other username) backend with spamassassin and have listed the full address there. If the recipient name has no domain part (if the recipient is on the local machine for example), defaultdomain is added. Requires the -u flag.
-f Causes spamass-milter to fork into the background.
-i networks
  Ignores messages if the originating IP is in the network(s) listed. The message will be passed through without calling SpamAssassin at all. networks is a comma-separated list, where each element can be either an IP address (nnn.nnn.nnn.nnn), a CIDR network (nnn.nnn.nnn.nnn/nn), or a network/netmask pair (nnn.nnn.nnn.nnn/nnn.nnn.nnn.nnn). Multiple -i flags will append to the list. For example, if you list all your internal networks, no outgoing emails will be filtered.
-m Disables modification of the Subject:’ and Content-Type:’ headers and message body. This is useful when SpamAssassin is configured with defang_mime 0’ and report_header 1’, or when SA is simply used to add headers for postprocessing later. Updating the body through the milter interface can be slow for large messages.
-M Like -m , but also disables creation of any SpamAssassin X-Spam-*’ headers as well. Both tagged and untagged mail gets passed through unchanged. To be useful, this option should be used with the -r , -b , or -B flags. If -b is used, the X-Spam-Orig-To:’ headers will still be added.
-P pidfile
  Create the file pidfile, containing the processid of the milter.
-r nn Reject scanned email if it greater than or equal to nn. If -1, reject scanned email if SpamAssassin tags it as spam (useful if you are also using the -u flag, and users have changed their required_hits value).

For example, if you usually use procmail to redirect tagged email into a separate folder just in case of false positives, you can use -r 15 and reject flagrant spam outright while still receiving low-scoring messages.

-R rejecttext
  Mail that is rejected is rejected with the message "Blocked by SpamAssassin". This option allows the user to call with a different message, instead. See also, the -C option
-S /path/to/sendmail
  This option is used in conjunction with the -x option to specify a path to sendmail if the default compiled in choice is not satisfactory.
-u defaultuser
  Pass the username part of the first recipient to spamc with the -u flag. This allows user preferences files to be used. If the message is addressed to multiple recipients, the username defaultuser is passed instead.

Note that spamass-milter does not know whether an email is incoming or outgoing, so a message from <> to <> will make spamass-milter pass -u user2 to spamc.

-x Pass the recipient address through sendmail-bv , which will perform virtusertable and alias expansion. The resulting username is then passed to spamc. Requires the -u flag. The spamass-milter configuration process does its best to find sendmail, but it is possible to override this compiled-in setting via the
-- spamc flags ...
  Pass all remaining options to spamc. This allows you to connect to a remote spamd with -d or -p .


  client interface to SpamAssassin


spamassassin(1), spamd(1)


.An Georg C. F. Greve Aq
.An Dan Nelson Aq
.An Todd Kover Aq
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