[exim-dev] [Bug 3037] Broken pipe in transport filter

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Autor: Exim Bugzilla
Datum:  
To: exim-dev
Betreff: [exim-dev] [Bug 3037] Broken pipe in transport filter
https://bugs.exim.org/show_bug.cgi?id=3037

--- Comment #2 from Zakaria <hi@???> ---
Hi Jeremy,

Thanks for getting back to me.

--Please don't tell me
--it hacks on Exim's spool file; this is not a public interface for Exim
--and you should not do that. A transport filter should operate
stdin=to-stdout
--as a stream processor.

I'm afraid to tell you, with all due trying my bestest to abide by the rules
and reading this notice https://github.com/Exim/exim/wiki/Q1601, this is just
what I'm doing. Since it's only my personal email server and testing on some
features but if there is any official mail server which requires some legal
notices and warning, please rest assured I'm going to address it all lawfully.

Yet, I couldn't access message body nor headers from bash script? and I had to
fetch it from spool files while I don't edit spool files at all but I found
calling echo with concatenated headers and body does the job, as transport
filter, takes this and replace it with existing one.

I read the documentation, here
https://www.exim.org/exim-html-current/doc/html/spec_html/ch-generic_options_for_transports.html,
it claimed message body and headers it's present somewhere in the stdin but
couldn't figure out which argument? would it be passed to modifyemail bash
script and under which name?

Also, just to be accurate, it seems as you stated true has nothing to do with
ARG_MAX, but I noticed any small email sent without attachment and pass through
my modifyemail.sh in transport filter, works just fine and doesn't throw broken
pipe?

Any feedback would be very much appreciated.

Looking forward, with thanks.

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