Hi again,
I tried this on Gentoo with dovecot-antispam version 20080601 and dovecot versions 1.0.15-r1, 1.1.0, 1.1.1 and 1.1.2. Versions 1.1.0+ all fail. Version 1.0.15-r1 works fine, even if I add the "Next message unexpectedly lost" check (see below).
So it seems to be a bug in dovecot (? but I guess it could be dovecot-antispam, too).
Could someone at least confirm this behaviour? Note that I use mbox, maildir seems to be OK.
Jiri Novosad
Jiri Novosad wrote:
Hello,
I'm trying to configure the dovecot-antispam plugin. Now I've run into a problem: whenever I try to move/copy a message in/from the spam mailbox, Thunderbird (and also Sylpheed, haven't tried anything else) says:
The current command did not succeed. The mail server responded: Failed to read mail beginning.
and in the logs I get:
dovecot: Aug 07 10:41:23 Error: IMAP(username): Next message unexpectedly lost from 337928 dovecot: Aug 07 10:41:23 Error: IMAP(username): Next message unexpectedly lost from 337928
The message is not moved/copied.
My config (dovecot -n):
base_dir: /var/run/dovecot_test/ log_path: /var/log/dovecot/test_log info_log_path: /var/log/dovecot/test_info_log protocols: pop3s imaps pop3 imap listen(default): *:10143 listen(imap): *:10143 listen(pop3): *:10110 ssl_listen(default): *:10993 ssl_listen(imap): *:10993 ssl_listen(pop3): *:10995 ssl_cert_file: /etc/ssl/anxur.pem ssl_key_file: /etc/ssl/anxur.pem ssl_parameters_regenerate: 24 login_dir: /var/run/dovecot_test/login login_executable(default): /packages/run.64/dovecot-1.1.2/libexec/dovecot/imap-login login_executable(imap): /packages/run.64/dovecot-1.1.2/libexec/dovecot/imap-login login_executable(pop3): /packages/run.64/dovecot-1.1.2/libexec/dovecot/pop3-login login_greeting: HI! login_greeting_capability(default): yes login_greeting_capability(imap): yes login_greeting_capability(pop3): no verbose_proctitle: yes first_valid_uid: 200 mail_location: mbox:/home/%u/mail/:INBOX=/var/mail/%u:INDEX=/home/%u/mail/.imap mail_debug: yes mail_full_filesystem_access: yes maildir_copy_with_hardlinks: no mbox_write_locks: fcntl mbox_dirty_syncs: no mbox_lazy_writes: no dbox_rotate_days: 0 mail_executable(default): /packages/run.64/dovecot-1.1.2/libexec/dovecot/imap mail_executable(imap): /packages/run.64/dovecot-1.1.2/libexec/dovecot/imap mail_executable(pop3): /packages/run.64/dovecot-1.1.2/libexec/dovecot/pop3 mail_plugins(default): antispam mail_plugins(imap): antispam mail_plugins(pop3): mail_plugin_dir(default): /packages/run.64/dovecot-1.1.2/lib/dovecot/imap mail_plugin_dir(imap): /packages/run.64/dovecot-1.1.2/lib/dovecot/imap mail_plugin_dir(pop3): /packages/run.64/dovecot-1.1.2//lib/dovecot/pop3 mail_log_max_lines_per_sec: 20 imap_max_line_length(default): 131072 imap_max_line_length(imap): 131072 imap_max_line_length(pop3): 65536 imap_client_workarounds(default): delay-newmail outlook-idle tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail outlook-idle tb-extra-mailbox-sep imap_client_workarounds(pop3): pop3_uidl_format(default): %08Xu%08Xv pop3_uidl_format(imap): %08Xu%08Xv pop3_uidl_format(pop3): %08Xv%08Xu pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: mechanisms: gssapi plain executable: /packages/run.64/dovecot-1.1.2/libexec/dovecot/dovecot-auth krb5_keytab: /etc/krb5.imap verbose: yes debug: yes passdb: driver: pam args: dovecot userdb: driver: passwd plugin: antispam_spam: mailbox.spam antispam_trash: trash;Trash;Deleted Items antispam_mail_spam: spam@mysite.org antispam_mail_notspam: notspam@mysite.org antispam_mail_sendmail: /home/username/fake_sendmail
Dovecot is version 1.1.2, dovecot-antispam is the latest snapshot. Running on Red Hat Enterprise Linux Server release 5.2, x86_64, filesystem is ext3 (on lvm).
Attached is the strace -p of the session.
The code seems to be this in i_stream_raw_mbox_read:
if (stream->istream.v_offset - rstream->hdr_offset + new_pos > rstream->mail_size) { /* istream_raw_mbox_set_next_offset() used invalid cached next_offset? */ i_error("Next message unexpectedly lost from%"PRIuUOFF_T, rstream->hdr_offset + rstream->mail_size); rstream->eof = TRUE; rstream->corrupted = TRUE; return -1; }
If I comment it out (after I backup my mail), everything seems to work as expected.
Jiri Novosad