- dovecot - dovecot.org

[Dovecot] RFC 3501 compliance issue: body-type-msg incorrect
by Tony Kay 11 Jun '06

11 Jun '06

Hi, I am using Dovecot 1.0 beta 7, moving to beta8 probably tomorrow. I am seeing a few RFC compliance issues with IMAP responses. I have an in-house IMAP client that caches IMAP data for a web mail system (it parses millions of IMAP interactions a day), and it reports whenever it gets a line that does not look RFC compliant. Unfortunately, users modify their mailboxes before I can get a copy that allows me to reproduce the errors. However, I can at least show you some examples of the response lines I'm seeing, since they are copied verbatim to my logs when they happen. I saw one case of imap-literal coming across without a \r\n sequence: * 1135 FETCH (UID 1345 RFC822.SIZE 4813894 BODY (("text" "plain" ("charset" "ISO-8859-1") NIL NIL "7bit" 415 6)("application" "octet-stream" ("name" {59}C:\\Documents and Settings\\Mitch\\Desktop\\AIR JORDANS.ppt) NIL NIL "base64" 4811938) "mixed") BODY[1]<0> {80} We sorted out what technical difficulties we having and have posted a corrected BODY[HEADER.FIELDS (FROM TO SUBJECT)] {90} From: XXX To: XXX Subject: Sports group II back online ) This one is probably some weird malformed message, since literal strings processing is certainly not broken in general. The much more common problem is when people receive a message that has a message embedded using the RFC3501 body-type-msg rule. Here is a sample incorrect response: * 4154 FETCH (UID 27140 RFC822.SIZE 14078 BODY (("text" "plain" ("charset" "ISO-8859-1" "format" "flowed") NIL NIL "7bit" 2 1)("message" "rfc822" ("name" "casbudmgr: FW: deans-dirs: Scholarship Announcement") NIL NIL "7bit" 11694 ("Wed, 12 Apr 2006 14:42:04 -0700" "casbudmgr: FW: deans-dirs: Scholarship Announcement" (("xxxxxxx xxxx" NIL "xxxxxx" "xxx.xxxxxxx.xxx")) ((NIL NIL "xxxxxxxxxxxxxxx" "lists.xxxxxxxxxxx")) ((NIL NIL "casbudmgr" "xxxxx.xxxxxxx.xxx")) ((NIL NIL "xxxxxxxxx" "xxxxxxxxxxxxxxxxx")) NIL NIL NIL <AF3B91355406B440A6E838338E63A742C6435B@xxxxxxxxxxxxxxxxxxxxxdu>") ("text" "plain" ("charset" "us-ascii") NIL NIL "quoted-printable" 2047 50)("text" "html" ("charset" "us-ascii") NIL NIL "quoted-printable" 6565 189) "alternative" 302)("text" "x-vcard" ("charset" "utf-8" "name" "ddkintz.vcf") NIL NIL "7bit" 415 14) "mixed")) Look through the line to the point where you see: "alternative" 302. The part the proceeds this is a body-type-mpart rule, but it is missing a set of parentheses...i.e. there should be an ending paren after alternative, and a beginning paren before the set of 1parts that precede it. This looks like a similar problem to what was in imap_bodystructure.c a while back. -- Anthony Kay University Computing Center (541) 346-1719 GPG Fingerprint: B0DB D46A 60AF FAE7 A94A 5075 0CB4 4D88 9F4F 7F09 Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning. Rich Cook

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[Dovecot] Fatal: chdir(/home/xxxxx) failed with uid xxx: Permission denied
by Nick Ortiz 11 Jun '06

11 Jun '06

I've had this issue for sometime, I finally gave up and switched to Courier-Imap but I'm finding I hate data storage / structure so I decided to give dovecot another go but am still running into the same issue. I had this working once upon a time and can not for the life of me figure it out. Here's some basic info. Dist: Gentoo 2005.1 Emerge Info: net-mail/dovecot-1.0_beta8 USE="ipv6 pam ssl -debug -kerberos -ldap -mbox -mysql* -pop3d -postgres -vpopmail" Permissions for /home: drwxr-x--x Owner for /home: root Permissions for /home/*: drwxr-xr-x Owner for /home/*: username:username dovecot: May 18 23:40:04 Info: auth(default): client in: AUTH 1 PLAIN service=IMAP secured lip=xxx.xxx.xxx.xxx rip=xxx.xxx.xxx.xxx dovecot: May 18 23:40:04 Info: auth(default): client out: CONT 1 dovecot: May 18 23:40:04 Info: auth(default): client in: CONT<hidden> dovecot: May 18 23:40:04 Info: auth(default): client out: OK 1 user=xxxx dovecot: May 18 23:40:04 Fatal: chdir(/home/xxxxx) failed with uid 502: Permission denied dovecot: May 18 23:40:04 Info: auth(default): master in: REQUEST 2 4464 1 dovecot: May 18 23:40:04 Info: auth(default): master out: USER 2 xxxx system_user=xxxx uid=502 gid=506 home=/home/xxxx ovecot: May 18 23:40:04 Info: imap-login: Login: user=<xxxx>, method=plain, rip=xxx.xxx.xxx.xxx, lip=xxx.xxx.xxx.xxx, TLS dovecot: May 18 23:40:04 Error: child 4488 (imap) returned error 89 Only real resolution I can find refers to SELinux which I do not have installed. I can provide my dovecot.conf if needed.

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[Dovecot] LDAP imaps,pop3s authentication problem
by Peter Susán 11 Jun '06

11 Jun '06

Hi, i'm using LDAP authentication with dovecot, and it's working flawlessly,until i enable SSL.. (even imaps or pop3s) i can't log in... if i test the certificates, and the login with the `openssl s_client - host example.com -port 993 -verify -debug` command, it works, until i want to log in... it lists the capibilities, but when i login it says "01 NO LOGIN failed"... no log messages appears in the logfile, only when i login without SSL... i've tried the newest beta8 and older versions of the server, but the effect is the same.. i'm really confused, becouse i have lots servers running dovecot, but with mysql authentication, and i didn't have any problems with them... the biggest problem is, that no log messages being generated during the process (with or without auth_debug, and auth_verbose options enabled), so i can't figure it out why is it happening.. it's working if i authenticate from other sources, just like passdb, or mysql... thx for the answers in advance, ->Peter Susán tel.: +36-20-395-3751 mail: peter(a)susinet.hu

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[Dovecot] beta8: cores on corrupted index file
by Jeff A. Earickson 11 Jun '06

11 Jun '06

Timo, I saw a couple of these cores over the weekend. The syslog says: May 21 19:04:48 emerald dovecot: [ID 107833 mail.error] IMAP(user): Corrupted index cache file /home/students/s/user/.imap/sent-mail-apr-2004/dovecot.index.cache: indexid changed With a resulting core file from imap at this time. I also discovered a remaining lock file on the person's imap file: -rw------- 1 user user 3088940 May 10 2004 sent-mail-apr-2004 -rw------- 1 user user 13 May 21 19:04 sent-mail-apr-2004.lock The lockfile contains the pid of the process that cores: May 21 19:04:48 emerald dovecot: [ID 684838 mail.error] child 17480 (imap) killed with signal 11 The gdb output of the core file is attached. Jeff Earickson Colby College

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[Dovecot] Dovecot statistics -- I hope this is a stupid question
by Jon Callas 11 Jun '06

11 Jun '06

Is there a way for me to know the last time a user logged in? i'm running Dovecot with Postfix with the authentication bridge and completely virtual everything. It would be nice to know the last time someone logged in, so four years from now I can delete the ones that haven't been used in three years. Jon

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[Dovecot] Slow caching
by John Rowe 11 Jun '06

11 Jun '06

I have just installed dovecot on a RedHat Enterprise 4 clone with exim MTA, procmail LDA and mbox format. I'm getting complaints of slow caching from a Mac user: I think there's still something very sick with [host]'s IMAP server: it just took a full five minutes to cache an attachment (350kb) in an email from [person]. In that time, I couldn't do anything else with mail; it was essentially locked. The user's inbox is in /var/spool/mail (where there are no idexes), there areindex files within his home directory: ./.imap/INBOX: total 1160 -rw------- 1 xyz users 60656 May 30 14:22 dovecot.index -rw------- 1 xyz users 891904 May 30 14:22 dovecot.index.cache -rw------- 1 xyz users 78428 May 30 14:22 dovecot.index.log -rw------- 1 xyz users 131920 May 26 11:29 dovecot.index.log.2 Everything is on local disk, there are no NFS mounts at all. Any thoughts? Thanks John

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[Dovecot] Inbox in two different locations
by arilinux 11 Jun '06

11 Jun '06

Hello I'm running dovecot v1.0.beta3 on a fedora 4 machine. I'm looking for the way to tell dovecot that some users have inbox (mailbox) in /var/mail/%u and some have inbox (maildir) in /home/%u/mail. Anyway?

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[Dovecot] deliver LDA status?
by Lev Serebryakov 11 Jun '06

11 Jun '06

Hello dovecot, wiki mentions `deliver', but it doesn't include into 1.0.beta8 dovecot distribution. It can be downlaoded from CVS, and even contains two tags on files, that seems to eb release tags :) But what is official status of `deliver' tool? Is it stable, or experemental, or what? Are here any plans when it will be packaged ad announced? -- Best regards, Lev mailto:lev@serebryakov.spb.ru

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[Dovecot] Can't run POP3 and IMAP simultaneously from xinetd...
by Timothy Meader 11 Jun '06

11 Jun '06

Hello all, I'm hoping you can help out with an issue I'm having running dovecot-beta8 on Solaris 9 (SPARC). The reason I need to run them from xinetd is that we require the filtering ability that tcp_wrappers provide. My issue is that, when running both from xinetd, IMAP runs fine, but then, when you try to POP in to check mail on the same box, it seems that the login section is handled via pop3-login... but all subsequent commands are handled via the imap interpreter. It's as if it's getting passed off to /usr/local/libexec/dovecot/imap instead of /usr/local/libexec/dovecot/pop3 as is specified in dovecot.conf. Here's an example from running a direct telnet session to the box in question: [operator@yyyy operator]# telnet yyyy 110 Trying xxx.xxx.xxx.xxx... Connected to yyyy. Escape character is '^]'. +OK Unauthorized access prohibited USER joeblow +OK PASS joeblowspass +OK Logged in. LIST LIST BAD Error in IMAP command : Unknown command. QUIT QUIT BAD Error in IMAP command : Unknown command. 1 logout If you do a ps -ef on the box and check the processes, at no time does a pop3 process start through this process. However, if you do the ps -ef right after the "LIST" command, you can see that there's an imap process started for user 'joeblow'. Now, if I take xinetd out of the equation and instead use the daemon mode /usr/local/sbin/dovecot... everything works perfectly. I've tried using the tcp_wrappers patch that's available in the unsupported directory on dovecot.org, but I cannot get the configure script to recognize the libwrap I have on the system when I compile dovecot with "--with-libwrap" as specified. I'm using tcp_wrappers for Solaris 9 off sunfreeware, so I know it's on there. I've also created sym links to libwrap.a and tcpd.h in /usr/lib and /usr/include respectively... still no dice. Honestly, I don't care which way dovecot runs (though daemon mode WOULD actually be preferred for performance reasons IF tcp_wrappers were available for use), but I just need it running both IMAP and POP3 somehow. Here are the applicable pop3 and imap sections of my dovecot.conf: -- default_mail_env = mbox:~/mail:INBOX=/var/mail/%1u/%1.1u/%u protocol pop3 { login_executable = /usr/local/libexec/dovecot/pop3-login mail_executable = /usr/local/libexec/dovecot/pop3 pop3_no_flag_updates = no pop3_enable_last = no pop3_uidl_format = %08Xu%08Xv pop3_logout_format = top=%t/%T, retr=%r/%R, del=%d/%m, size=%s pop3_client_workarounds = outlook-no-nuls oe-ns-eoh } protocol imap { login_executable = /usr/local/libexec/dovecot/imap-login mail_executable = /usr/local/libexec/dovecot/imap login_greeting_capability = yes } -- And the respective sections from xinetd.conf: -- service pop3 { socket_type = stream protocol = tcp wait = no user = root server = /usr/local/libexec/dovecot/pop3-login port = 110 flags = REUSE IPv4 rlimit_cpu = 150 instances = 80 cps = 110 10 disable = no } service imap { socket_type = stream protocol = tcp wait = no user = root server = /usr/local/libexec/dovecot/imap-login port = 143 flags = REUSE IPv4 rlimit_cpu = 120 disable = no } -- I hope someone can shed some light on this situation for me. Thank you in advance. --- Tim Meader CNE Internet Services NetCommerce Corporation Tim.Meader(a)gsfc.nasa.gov (301) 286-8013

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[Dovecot] missing empty line in mbox folders with Outlook 2000 client
by Gary Funck 11 Jun '06

11 Jun '06

I recently looked into a problem that has been plaguing me since the switch to dovecot a couple of years back, documented here: http://mailman.rwth-aachen.de/pipermail/procmail/2006-May/024363.html The gist is that when I tell Outlook 2000 to write all outgoing mail into a Sent-mail folder on the IMAP server (using mbox format), I find that the mbox's don't have empty lines separating the messages, (though the Content-Length field is correct. This leads to interoperability problems with programs and scripts that expect each mbox message to be separated by an empty line. (We're running dovecot-1.0-0.beta2.7 under Fedora Core 5 on an x86_64 platform.) Has this mbox behavior been reported before? Is it considered a bug or a feature? Is there a configuration option, or Outlook tweak, that can be enabled to ensure that the mbox's produced by writing messages to them via Outlook, are well-formed (have an empty line separating messages)?

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