dovecot - Apr 2018 - changed behavior for dovecot-lda in 2.3.x

Hi all,

Hey all, I upgraded to dovecot 2.3.1 (from 2.2.34) and noticed that the behavior
for dovecot-lda changed. Apparently it no longer accepts -f "" or -f
"<>?
With 2.2.34, both were accepted now I get:

root at mail:~# /usr/local/libexec/dovecot/dovecot-lda -f "<>"
lda(root): Fatal: Invalid -f parameter: Null path not allowed

or

root at mail:~# /usr/local/libexec/dovecot/dovecot-lda -f ""
lda(root): Fatal: Invalid -f parameter: Path is empty string

I guess this must be a bug? I mean, envelope sender *must* be empty for bounces.

Thanks,

Martin

> Am 07.04.2018 um 22:16 schrieb Martin Waschb?sch <martin at
waschbuesch.de>:
> 
> Hi all,
> 
> Hey all, I upgraded to dovecot 2.3.1 (from 2.2.34) and noticed that the
behavior for dovecot-lda changed. Apparently it no longer accepts -f
"" or -f "<>?
> With 2.2.34, both were accepted now I get:
> 
> root at mail:~# /usr/local/libexec/dovecot/dovecot-lda -f
"<>"
> lda(root): Fatal: Invalid -f parameter: Null path not allowed
> 
> or
> 
> root at mail:~# /usr/local/libexec/dovecot/dovecot-lda -f ""
> lda(root): Fatal: Invalid -f parameter: Path is empty string
> 
> I guess this must be a bug? I mean, envelope sender *must* be empty for
bounces.
In the list-archive, I saw at least one other person seemed to have had the same
problem.
Anyway, I fixed my immediate problem and created a pull-request which seems like
the right thing to do:

https://github.com/dovecot/core/pull/73
<https://github.com/dovecot/core/pull/73>

perhaps this helps someone else, too.

Thx,

Martin
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Op 4/7/2018 om 10:16 PM schreef Martin Waschb?sch:
> Hi all,
>
> Hey all, I upgraded to dovecot 2.3.1 (from 2.2.34) and noticed that the
behavior for dovecot-lda changed. Apparently it no longer accepts -f
"" or -f "<>?
> With 2.2.34, both were accepted now I get:
>
> root at mail:~# /usr/local/libexec/dovecot/dovecot-lda -f
"<>"
> lda(root): Fatal: Invalid -f parameter: Null path not allowed
>
> or
>
> root at mail:~# /usr/local/libexec/dovecot/dovecot-lda -f ""
> lda(root): Fatal: Invalid -f parameter: Path is empty string
>
> I guess this must be a bug? I mean, envelope sender *must* be empty for
bounces.
That is definitely a bug. Fix is available here:

https://github.com/stephanbosch/dovecot-core/commits/lda-fix-allow-empty-sender

Fix will be merged after internal review.

Regards,

Stephan.