On Mon, Mar 29, 2010 at 09:13:31AM -0400, Wietse Venema wrote: > Louis-David Mitterrand: > > Hi, > > > > I am using an (insanely) long pcre (see below) to reject > > african/chinese/etc. spam that relays through large ISP's. An now it > > seems I have reached a limit. When trying to add a single more > > expression with a set of () parens I get this error: > > > > postmap: warning: pcre map /etc/postfix/header_access_local, line 2: > > too many (...) > > Postfix logs this when pcre_exec() returns a match count of zero. > According to documentation: > > If the vector is too small to hold all the captured substring offsets, > it is used as far as possible (up to two-thirds of its length), and the > function returns a value of zero. > > About 10 years ago, someone decided that Postfix needs no more than > 99 () in a PCRE regular expression. I suppose this is one of many > things in Postfix that should eventually be made configurable. > > For now, you would have to edit dict_pcre.c, and update the > PCRE_MAX_CAPTURE constant.
I guess this means the rule can simply by fixed by not capturing anything, always using: (?:foobar)
