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rewriting(5)		      File Formats Manual		  rewriting(5)

NAME
       rewriting - syntactic changes to	mail-address host names

DESCRIPTION
       new-inject  and	ofmipd support a generic rewriting system for Internet
       mail addresses.	Each host name is transformed according	to a series of
       instructions,  as described here.  The instructions are followed	in or-
       der, each at most once.

       An instruction is either	=post:new, *post:new, ?post:new, or -post:new.
       =post:new  means	that the host name post	is replaced by new.  *post:new
       means that any host name	of the form prepost  is	 replaced  by  prenew.
       ?post:new  means	that any host name of the form prepost,	where pre does
       not contain dots	or brackets, is	replaced by prenew.   -post:new	 means
       that any	host name of the form prepost is replaced by new.

       For  example,  the  instruction	*.: removes a trailing dot if there is
       one; =:vangogh converts an empty	host name into vangogh;	 ?:.cs.b  adds
       .cs.b  to  any  host  name  without dots	or brackets; *.b:.berkeley.edu
       changes vangogh.cs.b  into  vangogh.cs.berkeley.edu;  -.local:cs.berke-
       ley.edu converts	me.local into cs.berkeley.edu.

INSTRUCTION SOURCES
       Rewriting instructions are normally listed in the rewrite control file,
       one instruction per line.

       If rewrite does not exist, new-inject and ofmipd	use the	control	 files
       defaultdomain,  defaulthost,  and  plusdomain in	the following instruc-
       tions:

	  *.:
	  =:defaulthost
	  *+:.plusdomain
	  ?:.defaultdomain

       In other	words: (1) If the host name ends with a	dot, remove  the  dot.
       (2)  If	the host name is empty,	add defaulthost.  (3) If the host name
       ends with a plus	sign, change the plus sign to a	dot  and  add  plusdo-
       main.   (4)  If	the host name does not contain dots or brackets, add a
       dot and add defaultdomain.

       The defaultdomain, defaulthost, and plusdomain  control	files  can  be
       overridden  by the environment variables	$QMAILDEFAULTDOMAIN, $QMAILDE-
       FAULTHOST, and $QMAILPLUSDOMAIN respectively.  They all default to me.

SEE ALSO
       new-inject(1), rewritehost(3), qmail-control(5),	ofmipd(8)

								  rewriting(5)

NAME | DESCRIPTION | INSTRUCTION SOURCES | SEE ALSO

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