[Dovecot] Converting old emails to compressed format

[Renaud Allard]

Hello,


I am now running dovecot 2.2.12
Compression works fine for new mails, so zlib works
Mails are currently stored using dbox

So I tried for testing
dsync -D -v mirror -u user -m Archives dbox:~/temp
dsync -o "plugin/zlib_save=xz" -D -v mirror -u user -m Archives dbox:~/temp
dsync -o "plugin/zlib_save=" -D -v mirror -u user -m Archives dbox:~/temp
dsync -o "plugin/zlib_save=" -D -v mirror -u user -m Archives maildir:~/temp



And also with backup instead of mirror

None of this actually works, mails are indeed copied, but not compressed

So I am wondering if there is a way to compress those mails?

Thank you

I know this question has already been asked, but I would really like a solution here as I tried all I could find on the wiki or mail archives dsync -o "plugin/zlib_save=xz" -D -v mirror -u user -m Archives maildir:~/temp And also converting again those maildir messages to dbox (just in case it wouldn't work from dbox format)

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