How do you synchronize your notmuch tags across multiple machines?

Dan Čermák dan.cermak at
Fri Jan 4 05:43:39 PST 2019

Could you maybe elaborate in more detail, as I don't know how it would
help me exactly? Are you running a server for syncing your tags?

My problem is the following: I have 3 machines E, B and C of which none
is always up and running. I would like to be able to sync my email on
any of the machines with offlineimap (but always only with one syncing)
and to transfer what's missing to the others, once I switch the
currently used machine.



Brian Sniffen <bts at> writes:

> I had the same problem. I found a solution: dispense with imap. This can be in two ways:
> For work, I use getmail (and imap) to read messages from an Exchange server and drop them in a maildir. Muchsync then coordinates those. 
> For personal mail, I just use muchsync to directly manipulate Dovecot’s maildir. 
> Both work fine. In the “work” case, changes are not pushed back up to the server. 
> -- 
> Brian Sniffen
>> On Jan 3, 2019, at 5:27 PM, Dan Čermák <dan.cermak at> wrote:
>> I have just given muchsync a try and it synchronizes email and tags very
>> quickly. I am quite impressed by it!
>> Unfortunately, I have hit exactly the same problem that you describe: I
>> have to have a single machine that pulls in my email via offlineimap and
>> then sync to the others via muchsync. That is a little inconvenient, as
>> I was hoping that I could switch the "master" depending on which machine
>> I am currently using and not having it up and online at all times.
>> I am afraid that that's not going to be easy to accomplish, as it
>> requires muchsync and a maildir synchronization program (in my case
>> offlineimap) to play together. The problem with offlineimap seems to be
>> that it expects the maildir filenames to have a different form and does
>> not recognize those that muchsync created (and it instead tries to clone
>> all my inboxes again). In case I'll manage to get muchsync to work
>> without a dedicated master, I'll let the list know.
>> Cheers,
>> Dan
>> Tom Hirschowitz <tom.hirschowitz at> writes:
>>> I also use muchsync. Had a few issues with it in the beginning but the
>>> author, David Mazières, was quite efficient in fixing them, and patient
>>> with me being awkwardly incompetent. It's been working like a charm
>>> since then.
>>> It took me some time to figure out a working set up though. My mail is
>>> now fetched first on the same machine everytime, and then synchronised
>>> from other machines through muchsync. This is a bit annoying, and I'd be
>>> curious if anyone had a better way.
>>> Tom
>>>> * Dan Čermák:
>>>>> I have found muchsync, but unfortunately very little reports about how
>>>>> well it works, which isn't necessarily a bad thing.
>>>> Muchsync works well for me, although I only need to sync between two
>>>> machines. It is quite fast after the initial synchronisation, and I
>>>> did not have any problems yet. I reported a small error in the
>>>> documentation, but that should be fixed by now.
>>>> -Ralph
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