Ooh now I understand - you basically disable/bypass the automatic discarding of the duplicates during import, and then enable the discarding again. That works nice too.
-----Ursprungligt meddelande----- Från: dovecot-boun...@dovecot.org <dovecot-boun...@dovecot.org> För André Rodier Skickat: den 5 april 2021 18:45 Till: Dovecot Mailing List <dovecot@dovecot.org> Ämne: Re: Sv: Sv: Sv: Sv: Avoid duplicate emails in the sent folder Sorry for the top posting. Here the solution I found, without using a secondary Sent folder: My sieve script is like this: ———————————————————————————————————————— require [ "imapsieve", "include" ]; include :personal :optional "pre-sent-checks"; discard; ———————————————————————————————————————— During the import phase, the sieve user script "pre-sent-checks.sieve" is created with this content: ———————————————————————————————————————— keep;stop; ———————————————————————————————————————— Once the import phase is finished, the user script contains this: ———————————————————————————————————————— require ["include"]; return; ———————————————————————————————————————— This is very well enough for me. The import takes just a few seconds, I don't have race conditions for now. I prefer doing this than createing a secondary Sent folder. On Sun, 2021-04-04 at 14:43 +0200, Sebastian wrote: > Why won't it work to just, as I said, create a separate folder, like > Sent2, which you use as a "midpoint" to land all your externally > imported emails, and then you just move everything from Sent2 to Sent. > > -----Ursprungligt meddelande----- > Från: dovecot-boun...@dovecot.org <dovecot-boun...@dovecot.org> För > André Rodier > Skickat: den 4 april 2021 14:40 > Till: Dovecot Mailing List <dovecot@dovecot.org> > Ämne: Re: Sv: Sv: Sv: Avoid duplicate emails in the sent folder > > On Sun, 2021-04-04 at 14:31 +0200, Sebastian wrote: > > Also another important thing to take in consideration: > > > > An email that is sent outgoing from an SMTP server, isn't a exact > > copy of the email put into the SMTP server. > > Thats why a deduplicate program/command/filter won't work, as the > > 2 > > emails aren't 100% identical. > Thanks, I see this as the main issue > > > The 2 "duplicates" arent technically 100% identical. Thats why the > > only solution is to prevent the IMAP client from writing new > > "unknown" > > emails into the Sent folder, and then instead use a separate folder > > for importing emails across accounts (from which you then COPY/MOVE > > emails from internally in the same acount, to the Sent folder). > > I continue to search on a simple solution, and I will come back to > you! > > > -----Ursprungligt meddelande----- > > Från: dovecot-boun...@dovecot.org <dovecot-boun...@dovecot.org> För > > André Rodier > > Skickat: den 4 april 2021 14:10 > > Till: Dovecot Mailing List <dovecot@dovecot.org> > > Ämne: Re: Sv: Sv: Avoid duplicate emails in the sent folder > > > > Hello Sebastian, > > > > On Sun, 2021-04-04 at 14:00 +0200, Sebastian wrote: > > > Thats why you need the exim4 filter too. > > > > I obtained the exact same result with postfix, using +Sent and a > > sieve filter. Sent emails are automatically bcc'ed to the user, > > using the > > +Sent email address. > > > > However, I still want to be able to drag and drop emails to the sent > > folder, which unfortunately uses the APPEND verb. > > > > Also, there is a mail import wizard that import emails from > > gmail/yahoo/etc, and there the verb used is APPEND. > > > > I am now investigating the doveadm deduplicate program. > > > > Kind regards, > > André > > > > > Because, my version basically prohibits the IMAP client from > > > writing to the Sent folder at all, and gives that job to the SMTP > > > server instead. > > > Works perfectly for me, all sent emails gets into the sent folder > > > without any hitch. > > > > > > Without any duplicates since no IMAP client is permitted to write > > > into the Sent folder. > > > > > > Note that only APPEND should be specifyed, not COPY, meaning that > > > if you COPY from the same IMAP account to Sent folder, it will be > > > permitted, but if you APPEND (write a new email) to the Sent > > > folder, it will get auto-deleted. > > > > > > -----Ursprungligt meddelande----- > > > Från: dovecot-boun...@dovecot.org <dovecot-boun...@dovecot.org> > > > För André Rodier > > > Skickat: den 4 april 2021 13:57 > > > Till: Dovecot Mailing List <dovecot@dovecot.org> > > > Ämne: Re: Sv: Avoid duplicate emails in the sent folder > > > > > > Thanks, Sebastian. > > > > > > I just tried this, but it is working too well. > > > > > > If I want to import emails from another Sent folder, using drag & > > > drop from my email client, the emails are deleted in the > > > background. > > > > > > This is why I am trying to use the duplicate filter. > > > > > > Kind regards, > > > André Rodier > > > > > > On Sun, 2021-04-04 at 13:04 +0200, Sebastian wrote: > > > > I have a sieve filter called "sent.sieve" > > > > > > > > Where I just do this: > > > > discard; > > > > > > > > Then in sieve settings: > > > > > > > > plugin { > > > > sieve_plugins = sieve_imapsieve sieve_extprograms > > > > sieve_global_extensions = +vnd.dovecot.execute > > > > sieve_execute_bin_dir = /usr/bin/ > > > > imapsieve_mailbox2_name = Sent > > > > imapsieve_mailbox2_causes = APPEND > > > > imapsieve_mailbox2_before = > > > > file:/etc/dovecot/sieve/sent.sieve > > > > imapsieve_expunge_discarded=yes } > > > > > > > > > > > > And then in Exim4 SMTP server: > > > > > > > > > > > > sentfolder.filter: > > > > if $sender_address_domain is sebbe.eu then unseen save > > > > /var/mail/asterisk2/Sent endif > > > > > > > > in exim4 config: > > > > system_filter = /etc/exim4/sentfolder.filter > > > > system_filter_file_transport = sentfolder > > > > > > > > in transports of exim4.conf: > > > > > > > > sentfolder: > > > > debug_print = "T: Sentfolder for $local_part@$domain" > > > > headers_add = Status: RO > > > > headers_remove = x-dkim-signature > > > > headers_remove = x-spf-signature > > > > headers_remove = x-trusted-domain > > > > headers_remove = keywords > > > > headers_remove = x-priority > > > > headers_remove = x-status > > > > driver = appendfile > > > > delivery_date_add > > > > envelope_to_add > > > > return_path_add > > > > use_flock_lock = yes > > > > use_fcntl_lock = no > > > > use_lockfile = no > > > > group = mail > > > > mode = 0777 > > > > mode_fail_narrower = false > > > > current_directory = / > > > > > > > > > > > > > > > > that should solve it. > > > > > > > > -----Ursprungligt meddelande----- > > > > Från: dovecot-boun...@dovecot.org <dovecot-boun...@dovecot.org> > > > > > > > > För André Rodier > > > > Skickat: den 4 april 2021 12:48 > > > > Till: dovecot@dovecot.org > > > > Kopia: us...@sogo.nu > > > > Ämne: Avoid duplicate emails in the sent folder > > > > > > > > Hello, > > > > > > > > I have a webmail program, that I cannot configure to not save > > > > sent emails in the Sent folder. My emails to the SOGo team don't > > > > seem to reach the mailing list anymore. > > > > > > > > So, I have no other choice to think the problem differently, and > > > > _maybe_ use Dovecot to fix this issue. Moreover, I think this > > > > could be useful for other email clients. > > > > > > > > First, I have tried to use Sieve, but no success so far: > > > > > > > > ------ > > > > imapsieve_mailbox4_name = * > > > > imapsieve_mailbox4_from = Sent > > > > imapsieve_mailbox4_causes = APPEND, COPY > > > > imapsieve_mailbox4_after = file:/var/lib/dovecot/sieve/sent- > > > > checks.sieve > > > > ------ > > > > > > > > And this sieve script: > > > > > > > > ------ > > > > Message-ID header. > > > > require [ > > > > "variables", > > > > "environment", > > > > "duplicate", > > > > "imapsieve" > > > > ]; > > > > > > > > […] > > > > > > > > if duplicate :seconds 10 { > > > > discard; > > > > } > > > > ------ > > > > > > > > Otherwise, can I configure dovecot in a certain way, for > > > > instance create a virtual Sent folder. This would not save the > > > > email when appended, but still returns the list of sent emails ? > > > > > > > > But this is not working. Any idea? > > > > > > > > Thanks for your help! > > > > > > > > André > > > > > > > > > >
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