Hi,
faced with a current space problem on our dovecot 2.2.18 server, I thought about using the zlib plugin.
My questions:
is it really as simple as adding the options to the conf files as described in the docs :) ? http://wiki2.dovecot.org/Plugins/Zlib
As this just compresses new messages; dose anybody has a sort of simple cron or whatever script or best practice how to compress existing maildir mails? The doc is a bit complicated to me at that point...
Thanks a lot and regards . Götz
Il 04/03/2016 14:35, Götz Reinicke - IT Koordinator ha scritto:
Hi,
faced with a current space problem on our dovecot 2.2.18 server, I thought about using the zlib plugin.
My questions:
- is it really as simple as adding the options to the conf files as described in the docs :) ? http://wiki2.dovecot.org/Plugins/Zlib
Yes, we had enable it on Maildir/ without problems.
- As this just compresses new messages; dose anybody has a sort of simple cron or whatever script or best practice how to compress existing maildir mails? The doc is a bit complicated to me at that point...
We had created a custom script but you can find many example on the web:
https://gist.github.com/cs278/1490556
I suggest to do not use script that rename email files because they can invalid the uidlist. Simple check if the file is already compress (es. if gzip -t "${MAILFILE}" 2> /dev/null".
-- Alessio Cecchi Postmaster @ http://www.qboxmail.it https://www.linkedin.com/in/alessice
Hi,
On 8/03/2016 12:13 AM, Alessio Cecchi wrote:
Il 04/03/2016 14:35, Götz Reinicke - IT Koordinator ha scritto:
Hi,
faced with a current space problem on our dovecot 2.2.18 server, I thought about using the zlib plugin.
My questions:
- is it really as simple as adding the options to the conf files as described in the docs :) ? http://wiki2.dovecot.org/Plugins/Zlib
Yes, we had enable it on Maildir/ without problems.
Okay, I like the idea of saving messages in compressed format, My exim4 on Debian with split config doesn't create files with the size tag, ala:
maildir_tag = ,S=$message_size
Where should I put this to make it active for exim4 on Debian?
I've tried a couple of different config locations, but I can't get it to create new files with ,S=$message_size in the file names.
AIUI, the message size component of the file name is required to use gzip method on files.
I've also adjusted the dovecot config due to this requirement:
"If you want to use dsync to convert to a compressed Maildir you may need -o maildir_copy_with_hardlinks=no (this is set to yes by default and will prevent compression). "
Would I normally need this setting like that as well?
Kind Regards AndrewM
Il 07/03/2016 16:13, Andrew McGlashan ha scritto:
Okay, I like the idea of saving messages in compressed format, My exim4 on Debian with split config doesn't create files with the size tag, ala:
maildir_tag = ,S=$message_sizeWhere should I put this to make it active for exim4 on Debian?
You should use dovecot-lda (or LMTP) to add "S=$size" to email files. I don't know how to do it with Exim.
Alessio Cecchi Postmaster @ http://www.qboxmail.it https://www.linkedin.com/in/alessice
participants (3)
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Alessio Cecchi
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Andrew McGlashan
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Götz Reinicke - IT Koordinator