how to doveadm search from "<>" (null sender)?

[Philipp Faeustlin]

Hi,

search for null sender in INBOX for me is:

doveadm search -u USER mailbox INBOX HEADER Return-Path '<>'

because in my received mails the Header field "Return-Path" contains the 
envelop sender.

Other way is to search for MAILER-DAEMON in from field:

doveadm search -u USER mailbox INBOX from 'MAILER-DAEMON at DOMAIN'


Philipp

Am 11.06.2015 um 17:17 schrieb Daniel Funke:
> Hi,
>
> I tried to search for mailer daemon messages but can't find a syntax for
> the null sender.
>
> all these does not work:
> doveadm -u xxx from "<>"
> doveadm -u xxx from <>
> doveadm -u xxx from ""
>
> any ideas?
>
> Thank you
> Daniel

-- 
Philipp Fäustlin
Universität Hohenheim
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