[MlMt] Question about re-installing MM—Do I lose my IMAP mailboxes in MM?

Steven M. Bellovin smb at cs.columbia.edu
Wed Jan 27 13:09:08 EST 2021

I'm mostly out of ideas, but have you disabled SpamSieve on the
older laptop? You should not have it active on both at once. (If
you use both computers, see the SpamSieve documentation on
remote operation.)

On 27 Jan 2021, at 12:47, Ken Pope wrote:

> Thank you so much for such a clear & detailed explanation.
> What baffles me is that I migrated everything from a 2018 MacBook Pro 
> to an M1 13-inch MacBook Pro and have changed nothing.  The set-ups 
> are identical.  Yet while the MM/SpamSieve combo on the 2018 continues 
> to work perfectly (I just got it out & checked), the MM/SpamSieve 
> combo on the M1 doesn’t work at all.  Have tried everything I can 
> think of, yet nothing seems to help.  Any suggestions greatly 
> appreciated.  Thanks.
> On 26 Jan 2021, at 21:44, Steven M. Bellovin wrote:
>> On 26 Jan 2021, at 18:52, Ken Pope wrote:
>>> Have tried all sorts of way to fix a problem w/ SpamSieve since I 
>>> moved to an M1 13-inch MacBook Pro (checked everything: SpamSieve 
>>> correctly labels spam but spam ends up in inbox & legit mail ends up 
>>> in junk mailbox) and can’t think of anything else to do but 
>>> uninstall both MM & Spamsieve & install new versions of both.
>>> My question is: If I completely uninstall MM, download a clean 
>>> version & reinstall it, do I lose all the IMAP mailboxes I’ve 
>>> created in MM?
>> The IMAP mailboxes are on the server; it will neither know nor care
>> that you've done anything to the client. However…
>> Smart mailboxes are part of your MailMate configuration. If you wipe
>> that out—more on that below—you'll lose them.
>> It strikes me as extremely likely that your problem is configuration, 
>> not
>> the executables. Deleting and reinstalling the applications won't fix 
>> that.
>> Wiping out your configuration files would likely do more to fix your
>> problem, but of course you'd have to recreate a lot. The question is
>> what the issue might be.
>> The obvious place to look is any rules—or any rules on any other 
>> devices
>> you have that talk to that IMAP server. For that matter, in some 
>> situations
>> there are server-side rules. Generally speaking, having more than one
>> computer that can touch the same messages is a recipe for trouble.
>>         --Steve Bellovin, https://www.cs.columbia.edu/~smb
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         --Steve Bellovin, https://www.cs.columbia.edu/~smb
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