how to deal with mail retention/archival.

[André Felipe Machado]

Hello
1 - http://www.enkive.org ?
2 - expunge delay , but sent msg on client not copying to a sent folder?
3 - postfix always bcc to a second Cyrus system?
Regards
André Felipe



Em 27 de agosto de 2016 13:29:14 BRT, Bron Gondwana via Info-cyrus <info-cyrus at lists.andrew.cmu.edu> escreveu:
>
>
>
>On Sat, 27 Aug 2016, at 02:13, Shawn Bakhtiar via Info-cyrus wrote:
>>
>>> On Aug 26, 2016, at 8:35 AM, Giuseppe Ravasio (LU) via Info-cyrus
><info-
>>> cyrus at lists.andrew.cmu.edu> wrote:
>>>
>>> I saw that someone proposed to make a sort of abuse of delayed
>>> expunge,
>>>  but I think that in order to comply with regulatory retention
>>>  should be
>>>  better considering some specific software.
>>>
>>
>> I don't see how using delayed expunge would really be consider abuse,
>> the documentation makes mention of its use for this very reason.
>
>You will hit performance issues. All expunged messages need to be
>scanned over at every select and refresh.
>
>> "In any case, the time between a message arriving and being deleted
>> may not be sufficient to ensure the message is replicated, included
>in
>> the next backup cycle, and generally available for recovery or
>> compliance with the regulatory environment."
>> --src  https://cyrusimap.org/imap/features/delayed-expunge.html
>
>If you are replicating to a system that's backing up, then you need
>delayed delete to ensure everything gets replicated.
>
>The backup system that's in development uses the sync protocol to feed
>the data from Cyrus into the backups.
>
>> We use rsync to make a duplicate of the email spool to a file server
>> at regular intervals, which eventually makes its way to tape.
>Although
>> we don't have regulatory requirements I've had to do a few recoveries
>> and have done so without problem.
>>
>> in our case we have cyr_expire set to 3 days (I believe the default
>> config), which provides more than enough time to in case a backup
>> fails for some reason or another.
>>
>>
>>> For example:
>>> http://www.mailpiler.org (Fully Free Software)
>>> https://www.mailarchiva.com (the old version is opensource but the
>>>  latest is closed)
>>>
>>> The specific software will be much better for searching the archive.
>>>  Finding something in the delayed_expunge folders after many years
>of
>>>  archive will absolutely be a nightmare!
>>>
>>
>>
>> Of course these tools offer features but that all comes at a price.
>>
>>
>>>
>>
>>
>>> Giuseppe
>>>
>>>
>>>  On 08/26/2016 03:09 PM, Alvin Starr via Info-cyrus wrote:
>>>
>>>> A company I am working with is facing issues of regulatorymail
>>>> retention.
>>>>
>>>>  Some searching has yielded little useful results other than
>>>>  putting a
>>>>  system in front to store all incoming messages.
>>>>
>>>>  What are others doing for mail archival?
>>>>
>>>>  An ideal solution would let the users carry on using current use
>>>>  patterns and not impose extra restrictions.
>>>>
>>>>  --
>>>>  Alvin Starr                   ||   voice: (905)513-7688
>>>>  Netvel Inc.                   ||   Cell:  (416)806-0133
>>>> alvin at netvel.net ||
>>>>
>>>>
>>>>
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>
>--
>  Bron Gondwana
>  brong at fastmail.fm
>
>
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-- 
Sent from my Android device with K-9 Mail. Please excuse my brevity.
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