<DKIM> Access mailbox from multiple devices – share offlineimap metadata folder with ownCloud?

tomasz.zok at gmail.com tomasz.zok at gmail.com
Wed Mar 28 19:13:37 BST 2018

Dear Jorge,

you can configure OfflineIMAP separately on your workplace computer and
on your notebook, both outside of ownCloud (or if you treat it as backup
then use it, but do not share the same maildir/metadata between two
computers). As for your personal e-mail, keep in ownCloud only the
maildir, which you can access read-only at work and synchronize when
using notebook. This configuration should not give any chance for
ownCloud to "mess" up your data in case of troubles with locks or


On 2018-03-28 at 15:19, Jorge wrote:
> I have still not configured OfflineIMAP on my notebook.  Today I thought of a
> new potential issue.  If I configure the work email account on both my work
> desktop and my personal notebook, what if I forget to shut down OfflineIMAP on
> the work desktop, then go home and switch on OfflineIMAP on the notebook?  Then
> there could be two instances of OfflineIMAP synchronizing the same IMAP server
> to the "same" local maldir (because ownCloud would synchronize the two local
> maildirs).  I fear trouble if OfflineIMAP fails to get locks or if it does get
> them but ownCloud fails to transmit them to the over device.  Since ownCloud has
> limitations – e.g. problems with hardlinks and inaction on symlinks and files
> with problematic names – I fear it could have trouble with locks.
> So maybe I should on my work desktop configure OfflineIMAP exclusively for the
> work account, and on my notebook configure it exclusively for the personal
> (Disroot) account.  I would still share the maildirs over ownCloud, so my mail
> client (notmuch-emacs) would access the already retrieved messages from both
> accounts.  The one downside is that my notebook would be unable to retrieve new
> mail from my work IMAP server to the local maildir, but I could just use the
> webmail on the very rare occasions I need realtime work e-mail from my home.
> What do you think?  Thank you in advance.
> - I am Brazilian.  I hope my English is correct and I welcome feedback
> - Please adopt free formats like PDF, ODF, Org, LaTeX, Opus, WebM and 7z
> - Free/libre software for Android: https://f-droid.org/
> - [[https://www.gnu.org/philosophy/free-sw.html][What is free software?]]

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