On Tue, 11 Jan 2022, Matthias Leisi via mailop wrote:
How would it know the difference if it was Thunderbird, or the user?
You can guess by timing.
If the message is moved to spam folder immediately after being fetched by
client, then it is an automated filter action. If there is at least a few
seconds delay, then it is probably the user manually moving the message into
spam folder (the user needs some time to look at least at the subject of
the message and click the appropriate button).
The mail client with its local spam filter may not be connected at
the time the message arrives in the inbox. It may come online at a
later point and move messages to the spam folder with considerable
delay.
Delay relative to arrival in inbox, yes.
Delay relative to message being fetched by mail client, no.
But yes, if the user downloads the message with something like fetchmail,
then uses thunderbird to read the *local* inbox.
--
Andrew C. Aitchison Kendal, UK
and...@aitchison.me.uk
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