Re: Avoiding duplicate messages

Norman Walsh <[email protected]> Fri, 28 Sep 2018 12:15:09 -0500

Newsgroups	gmane.mail.getmail.user
Message-ID	<[email protected]>

Charles Cazabon <[email protected]> writes:
>> My less-than-entirely-satisfactory workaround is to *not* have getmail
>> retrieve messages from the folder that I moved the message into.
>
> I'm curious why that's not satisfactory.  That is exactly what I would expect

It’s totally reasonable behavior, it just conflicts with my goal of
having all messages downloaded to my laptop, even if I’ve messed about
with them on my phone at some point when the laptop was offline.

> I don't know about "better", but there is a more complex solution.  You can
> use getmail's message-filtering functionality to prevent delivering the same
> message twice; the filter checks the *content* of the message (probably a
> hash/signature) and exits with an appropriate return code to tell getmail not
> to continue with message delivery if it's one that's been seen before.
> Otherwise, it adds the message to the filter's state file that keeps track of
> previously-delivered messages.

Thanks. I’ll look into that.

                                        Be seeing you,
                                          norm

-- 
Norman Walsh <[email protected]> | A man should have any number of little
http://nwalsh.com/            | aims about which he should be conscious
                              | and for which he should have names, but
                              | he should have neither name for, nor
                              | consciousness concerning, the main aim
                              | of his life.--Samuel Butler (II)

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