On Fri, 28 May 1999, Kevin J Collins wrote:
> Thanks for the explanations of the '552' error. Is the limit of 8192
> defined in any of the relevant RFC's, is it a rule-of-thumb or is it a
> reasonable if arbitrary limit?
Rule of thumb. In Exim 3.00 and later, you can change this by setting
HEADER_MAXLENGTH=xxxx
in your Local/Makefile. There has to be *some* limit, because otherwise
a malefactor can open an SMTP channel to your host, start a message, and
then just send characters continuously until your machine runs of of
memory (because Exim is storing the header up in memory).
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
--
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