Sieve: adding Date: header when missing

[Reindl Harald]

Am 17.07.2014 16:46, schrieb Daniele Nicolodi:
> Hello Harald,
> 
> On 17/07/2014 16:30, Reindl Harald wrote:
>>
>> Am 17.07.2014 16:13, schrieb Daniele Nicolodi:
>>> there is a way with a sieve rule to add a Date: header when it is
>>> missing?  Adding one with the time of reception of the message or using
>>> the date from the the first Received: header would be good options.
>>>
>>> Unfortunately I'm receiving some useful automated messages that lack a
>>> Date header and this screws up the sorting in my imap clients.  I have a
>>> script to fix those acting on the Maildir storage, but I would prefer to
>>> have the thing solved more radically
>>
>> in no case that's dovecot related
> 
> Indeed. Maybe my question was not clear, what I'm asking is a way to add
> the header to the specific messages via a sieve rule.  I can add headers
> via sieve but I don't know if there is a way to get the current time or
> to set an header with information from another.

as said:
fix the application or try to solve that at MTA level

>> if at all the MTA has to deal with metadata as it does
>> with missing message-id's - LDA/LMTP should never change
>> anything inside a message and just store "as it is"
> 
> The default behavior of the clients I'm using is to use the time at
> which the message has been retrieved from the IMAP server, which does
> not really make sense to me.

because the date header is mandatory
undefined behavior

i had running MTA's reject any message missing date or message-id at all

>> BTW:
>> i guess smokeping
>> Fedora has fixed that after a bugreport from me months ago
> 
> I don't know what smokeping is

http://oss.oetiker.ch/smokeping/

well, it was a localized date header, not a missing one
buit the result is the same - no date at all displayed by clients
https://bugzilla.redhat.com/show_bug.cgi?id=1080949

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