[Kde-pim] using a spamfilter with an online IMAP account

[Martin Steigerwald]

Hello,

I am currently writing an Using CRM114 with KMail article for the german 
Linux print magazine Linux User.

After I tested using it with POP3 and DIMAP at least a month now, I tried 
using an online IMAP account now.

Well the anti spam wizard doesn't let me choose folders from that online 
IMAP account. I thought I might be more clever than it, chose local 
folders at first and then changed the created filter rules destination to 
my intended online IMAP folders.

It somewhat works but is very slow... and classifying mails that are in 
the unsure folder does not work as expected. When I classify one as spam 
it reappears in the unsure folder nonetheless for example. Also mails in 
the spam folder are not marked as spam.

Also operation does not seem to be very stable. I had 3 or 4 KMail 
crashes.

Should I use local folders as the behavior of the antispam wizard 
suggests?

With DIMAP I didn't use a folder for unsure mails as well, as refiltering 
mails classified as good put them into the unsure mail folder again. I 
chose the following approach instead:

1) If its detected as spam move it to the DIMAP folder for spam and mark 
it as spam

2) If its detected as unsure just mark it as spam but do not sort it into 
the spam folder. The user has to search the mails classified as unsure 
and retrain them.

With POP3 I use an UNSURE foldern instead. I mark mails in there either as 
spam or ham. The spam mails are moved to the spam folder immediately, the 
ham mails remain in the UNSURE folder unless I select them an rerun 
filter rules manually (press Ctrl-J in german locale). This works 
reasonably well.

Any hints or recommendations? Otherwise I will just try a bit more and 
describe what does seem to make sense to me. What I learn might give some 
ideas for the KMail documentation. ;)

I know with IMAP using CRM114 on the serverside does make some sense, but 
then not everyone has his own mailserver.

This all with the Dovecot POP3 and IMAP servers on my own virtual Debian 
based server. Crashes might be related to using that server with 
Dovecot... it is with a freshly created user on my IBM ThinkPad laptop.

I have to concentrate on getting ready the article this week, but I can 
have a look at those crashes afterwards.

Regards,
-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7
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