[Dovecot] Truncated emails in Dovecot (v1.0.13)
Odd situation started recently whereby emails that are delivered into a maildir folder are being truncated when read. The emails are delivered via Exim and I can see the emails are complete when I look inside them. However, when viewing the emails via Thunderbird or a webmail client, they are truncated.
*** START 'dovecot -n' ***
1.0.13: /etc/dovecot/dovecot.conf
base_dir: /var/run/dovecot/ log_path: /var/log/mail.log info_log_path: /var/log/mail.log protocols: imap imaps pop3 pop3s ssl_cert_file: /etc/ssl/server_certs/mail.example.com.crt ssl_key_file: /etc/ssl/server_certs/mail.example.com.key ssl_cipher_list: ALL:!LOW disable_plaintext_auth: no login_dir: /var/run/dovecot//login login_executable(default): /usr/libexec/dovecot/imap-login login_executable(imap): /usr/libexec/dovecot/imap-login login_executable(pop3): /usr/libexec/dovecot/pop3-login login_greeting: Welcome to the example IMAP server first_valid_uid: 8 mail_access_groups: mail mail_location: maildir:/home/vmail/%d/%n/mail mail_debug: yes mail_executable(default): /usr/libexec/dovecot/imap mail_executable(imap): /usr/libexec/dovecot/imap mail_executable(pop3): /usr/libexec/dovecot/pop3 mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugin_dir(default): /usr/lib/dovecot/imap mail_plugin_dir(imap): /usr/lib/dovecot/imap mail_plugin_dir(pop3): /usr/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(pop3): outlook-idle pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh namespace: type: private separator: . location: maildir:/home/vmail/%d/%n/mail inbox: yes auth default: passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen master: path: /var/spool/mail/dovecot/auth-master mode: 511 user: root plugin: trash: /etc/dovecot-trash.conf quota: maildir:storage=102400 *** END ***
I've deleted the dovecot cache and rebuilt, but there's no change here. This is running on a Gentoo Linux server (Xen) with kernel 2.6.20.
Any ideas?
Iain.
On Fri, 2008-05-02 at 12:22 +0200, Iain wrote:
By dovecot cache I suppose you mean the dovecot.index.cache file in the mailbox? How much does it get truncated? Can you show an example mail and what they look like in the client?
Only thing I can think of is that you've added ,W=<bytes> with wrong byte count to the maildir filenames.
Timo Sirainen wrote:
Yes, was the dovecot.index.cache file I removed.
The tests I've been doing this morning have been with attachments. The following two extracts are what has been omitted from the displayed email, yet is present in the message on the server:
*** START *** 4 Content-Disposition: attachment; filename="test.foo"
VEVTVAo=
--0502-1137-52-PART-BREAK-- *** END ***
...and:
*** START *** ing: base64 Content-Disposition: inline; filename="test.foo"
VEVTVAo= --------------010803010900090205040205-- *** END ***
You're on the mark with the extension to the filenames. I do have the following in my exim.conf transport:
*** START *** mysql_delivery: driver = appendfile maildir_tag = ,W=$message_size directory = ${lookup mysql{MYSQL_MAILDIR}} user = mail group = mail *** END ***
Looking at the filesizes and the suffix sizes, they are matching perfectly.
*** START *** -rw------- 1 mail mail 6312 May 2 01:11 1209683491.H114523P560.mail.example.com,W=6312:2,Sb -rw------- 1 mail mail 3640 May 2 11:28 1209720532.H790587P7254.mail.example.com,W=3640:2,S -rw------- 1 mail mail 4073 May 2 11:31 1209720662.H774936P7285.mail.example.com,W=4073:2,S -rw------- 1 mail mail 25833 May 2 11:32 1209720754.H804395P7304.mail.example.com,W=25833:2,S -rw------- 1 mail mail 4231 May 2 11:37 1209721048.H92597P18984.mail.example.com,W=4231:2,S -rw------- 1 mail mail 1947 May 2 13:05 1209726353.H534275P24270.mail.example.com,W=1947:2,RSa -rw------- 1 mail mail 1926 May 2 13:26 1209727571.H688858P24325.mail.example.com,W=1926:2,Sa *** END ***
Regs.
Iain.
On Fri, 2008-05-02 at 13:57 +0200, Iain wrote:
Looking at the filesizes and the suffix sizes, they are matching perfectly.
That's the problem, they shouldn't be matching! ,S=<size> adds a file size to the name, which is useful with quota. ,W=<vsize> adds a *virtual* mail size, meaning the message size with linefeeds counted as CR+LF instead of just LF.
participants (2)
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Iain
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Timo Sirainen