Hi Miloš, unfortunately, I have no X-UIDL header in my mailboxes. Thank you
>----Messaggio originale---- >Da: ghostlovescor...@gmail.com >Data: 13/12/2014 10.25 >A: "absolutely_f...@libero.it"<absolutely_f...@libero.it>, <dovecot@dovecot. org> >Ogg: Re: Duplicate messages > >-----BEGIN PGP SIGNED MESSAGE----- >Hash: SHA256 > >On 12/12/14 09:39, absolutely_f...@libero.it wrote: >> Hi, I just moved mail spool to a different network storage. Now, >> several users are complaining about duplicate message that are >> fetched by their clients (Outlook, Microsoft Outlook). What is the >> reason? >> >> This is my conf: >> >> # dovecot -n # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux >> 2.6.32-71.el6.x86_64 x86_64 CentOS release 6.6 (Final) >> auth_mechanisms = plain login digest-md5 cram-md5 >> disable_plaintext_auth = no first_valid_gid = 89 first_valid_uid = >> 89 mail_gid = 89 mail_location = maildir:/coraid-s2l2/domains >> mail_uid = 89 managesieve_notify_capability = mailto >> managesieve_sieve_capability = fileinto reject envelope >> encoded-character vacation subaddress comparator-i;ascii-numeric >> relational regex imap4flags copy include variables body enotify >> environment mailbox date imapflags notify mbox_write_locks = fcntl >> namespace { inbox = yes location = prefix = INBOX. separator = . >> type = private } passdb { args = /etc/dovecot/dovecot-sql.conf.ext >> driver = sql } passdb { args = >> /etc/dovecot/dovecot-sql-crypt.conf.ext driver = sql } plugin { >> sieve = ~/.dovecot.sieve sieve_dir = ~/sieve sieve_extensions = >> +notify +imapflags sieve_max_script_size = 1M } protocols = imap >> pop3 lmtp sieve ssl_cert = </etc/nginx/ssl/wildcard.server.net.crt >> ssl_key = </etc/nginx/ssl/wildcard.server.net.key userdb { args = >> /etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { >> mail_plugins = } protocol lda { mail_plugins = } >> >Hello, > >Please check if those users have X-UIDL header in their emails. If do, >remove header. That should solve the problem. > >Regards, >Miloš >-----BEGIN PGP SIGNATURE----- >Version: GnuPG v2 > >iQEcBAEBCAAGBQJUjAYJAAoJEBkMFHhDgrs5LgAH/2uTkvRPLr0LEme+srIk72cw >F5yYiH17K7vaPERTPrmKWZGtpezylWK/7YevjCE44+60L8JZqmIVQ99JRZcvMfSh >KP5qu7A41EVXSsAiB75NfTcUEMAYYRSZHpu2rl9lFnGA+5zH9DCqSQrzyatF/DAl >pdmLHVDH4Cj9rNAVdEl5u1e3rC0VCV3xXGgIBkIR9wdIhtrzW7Bdt2Ove08ct93t >Uqj7mhtTxxBoUU2fDzkLZRdCSQpf8HiaKcgWQPNIcRGM0i+hbw42Sgwyl0XFiXfx >f9YxPcT8OahF1+lCnVvQXhR2TiLTbBn+nFN7yWkrNkPlqs8lfIh1t9JOzldrO48= >=YCbh >-----END PGP SIGNATURE----- >