[Dovecot] Explain about (mail_get_first_header(mail, "From", &header)

[Alex Baule]

my delivery is done by the exim, and i use maildir.
Well, i will use the mail_get_first_header with the Return-Path.

Tks.
 Em 13/06/2011 10:09, "Timo Sirainen" <tss at iki.fi> escreveu:
> On Fri, 2011-06-10 at 09:19 -0300, Alex Baule wrote:
>> Hi Timo...
>>
>> Inside my plugin, i use the (mail_get_first_header(mail, "From",
>> &header) function, to get the email From to put in some Blacklist.
>>
>> Looking in the header under this mail, we have 2 "From" fields.
>
> Do you mean these?
>
> From dma_3783 at envios.socomdescontos.com.br Tue Jun 07 15:43:04 2011
> From: "CompraFacil.com.br" <mkt at socomdescontos.com.br>
>
>> Using the function above, i get the Second "From", but my MTA (exim)
>> look in to The First From, in the First Line, in that way, my
>> blacklist don't work, because the sender to be blocked is different
>> from
>>
>> the From looked by dovecot.
>>
>> There is a way to get the "From" from First line ?
>
> The first line isn't a From: header. It's the "envelope sender". That
> line typically exists only with mbox format, not with other mailbox
> formats.. If you deliver a mail via dovecot-lda it removes this From
> line if it sees it.
>
> Typically you'd get this info from Return-Path: header.
>