Restoring Source Routes
Recall that the canonify rule set 3 converted the
commas of source route addresses into colons (Handling Routing Addresses on page
693). The final
rule set 4 now needs to restore those commas:
R $* : $+ :$+ <@ $+> $1 , $2 : $3 <@ $4> <route-addr> canonical
This rule recursively changes all but one (the rightmost) colon back into a comma.
As a special note, under V8
sendmail, envelope-sender
route addresses are always surrounded by angle
brackets when passed to the delivery agent. If this
behavior is inappropriate for your site, beginning
with V8.7 it is possible to prevent this heuristic
by specifying the F=d delivery agent flag (F=d on page 769).
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