Ok, didn't find much on this...
The bottom of /etc/dovecot/conf.d/10-mail.conf has the following settings:
#mail_attachment_dir #mail_attachment_min_size = 128k
#mail_attachment_fs = sis posix
#mail_attachment_hash = %{sha1}
all of which are apparently the defaults according to doveconf -d output
- so no need to set them explicitly, unless I want to change them, right?
So, enable the first one - but - the comments don't say anything about
supporting variables. I'm assuming you can, otherwise all attachments
for all domains would be in a single directory, which some admins might
not like (I wouldn't)... so hopefully I can just set it to this:
mail_attachment_dir = /var/vmail/%d/.attachments
So how does this work during conversion? Users still on maildir simply
don't engage it? But as users are converted to dbox, all attachments are
de-duped, and then new mails coming in with attachments (for converted
users) are de-duped at delivery?
The wiki could do with a bit more on enabling and implementing it,
especially what to expect when enabling it for the first time on a
production system and what to expect along the way when converting
existing users...
--
Best regards,
*/Charles/*
