Re: Setting custom headers in outgoing message using c-client

On Mon, 21 May 2012 20:02:21 +0000 "David C. Choweller" <[email protected]> wrote:

DCC> I would like to use the c-client library to set custom headers in an
DCC> outgoing message (sent using smtp_mail() function).
DCC> 
DCC> Which structure members of the BODY or ENVELOPE do I need to set to do this?

 I don't know if this changed since then but when we wrote the code to do
it (granted, it was in 1998) there was no simple way to do this in c-client
and we had to use a custom output redirector, i.e. a function set by
SET_RFC822OUTPUT, to output the headers manually. The full code is at the
end of this file

http://mahogany.git.sourceforge.net/git/gitweb.cgi?p=mahogany/M;a=blob_plain;f=src/mail/SendMessageCC.cpp;hb=HEAD

DCC> I tried using the PARAMETER *parameter member of the BODY.  However,
DCC> this does something I don't want it to.  For example, if I set
DCC> body->parameter->attribute  <--  "X-Custom-Header"
DCC> body->parameter->value  <--  "X-Custom-Value"
DCC> body->parameter->next  <--  NULL
DCC> 
DCC> What I get in the resulting email message is:
DCC> 
DCC> Content-Type TEXT/PLAIN; X-Custom-Header=X-Custom-Value
DCC> 
DCC> In other words, the parameter and value I specified have been added to
DCC> the "Content-Type" header, rather than creating a new header
DCC> "X-Custom-Header".

 This is correct because the parameters here are MIME parameters, not
headers.

 Regards,
VZ

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