Not sure what you mean. I’m using lmtp to send messages to Dovecot from Postfix.
> On 10 Jun 2017, at 6:08 pm, Aki Tuomi <aki.tu...@dovecot.fi> wrote:
>
> What's your LDA?
>
> Aki
>
>> On June 10, 2017 at 11:01 AM Peter West <li...@pbw.id.au> wrote:
>>
>>
>> Thanks for that Aki.
>>
>> Follow-up question. I tried to initiate compression by adding
>>
>> mail_plugins = $mail_plugins zlib
>>
>> plugin {
>> zlib_save_level = 6
>> zlib_save = xz
>> }
>>
>>
>> to dovecot.conf. I restarted dovecot and sent one message to the server,
>> and one message from the server. Neither was compressed. I changed the
>> save type to
>>
>> zlib_save = bz2
>>
>> and repeated. This time the message received (in
>> /var/vmail/<host>/<username>/cur) was not compressed, but the message in
>> /var/vmail/<host>/<username>/.Sent/cur was bzip2 compressed.
>>
>> Why is the received mail not being compressed? Is this the point of the
>> discussion about compressing old mails?
>>
>>
>>> On 10 Jun 2017, at 4:43 pm, Aki Tuomi <aki.tu...@dovecot.fi> wrote:
>>>
>>>
>>>> On June 10, 2017 at 5:58 AM Peter West <li...@pbw.id.au> wrote:
>>>>
>>>>
>>>> Concerning Maildir, the wiki page on compression has this:
>>>>
>>>> All mails must have ,S=<size> in their filename where <size> contains the
>>>> original uncompressed mail size, otherwise there will be problems with
>>>> quota calculation as well as other potential random failures. Note that if
>>>> the filename doesn’t contain the ,S=<size> before compression, adding it
>>>> afterwards changes the base filename and thus the message UID. The safest
>>>> thing to do is simply to not compress such files.
>>>>
>>>> Further down on the same page is this:
>>>>
>>>> If the file does exist, rename() (mv) the compressed file over the
>>>> original file.
>>>> • Dovecot can now read the file, but to avoid compressing it again on
>>>> the next run, you'll probably want to rename it again to include e.g. a
>>>> "Z" flag in the file name to mark that it was compressed (e.g.
>>>> 1223212411.M907959P17184.host,S=3271:2,SZ).
>>>>
>>>> These comments seem to contradict each. Or is there a difference between
>>>> adding the size specifier to the filename and adding a Z flag to the end
>>>> of the file name?
>>>>
>>>> --
>>>> Peter West
>>>> p...@pbw.id.au
>>>> And the great throng heard him gladly.
>>>>
>>>
>>> Keyword is 'base filename'. From the wiki, "The standard filename
>>> definition is: "<base filename>:2,<flags>".". Z is a flag.
>>>
>>> Aki
>>
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