On Wed, Dec 23, 2015 at 05:29:12PM -0500, Bill Cole wrote:
> The /m modifier may in fact never be useful in a Postfix pcre maps and I'm
> not sure how one would test for whether it is actually functional. I cannot
> think of any circumstance where Postfix might want to pass pcre a truly
> multiline subject string for a map query, but such a case may exist.
Headers are processed one logical (folded) header at a time, and
may contain internal newlines. Multiline matching is meaningful
in header_checks(5).
--
Viktor.
