August 2004 - dovecot

[Dovecot] [PATCH, RFC] add APOP authentication mechanism
by Andrey Panin 14 Aug '17

14 Aug '17

Hello all, this patch add APOP authentication mechanism to dovecot 1.0-test23. Please take a look. Best regards. -- Andrey Panin | Linux and UNIX system administrator pazke(a)donpac.ru | PGP key: wwwkeys.pgp.net

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[Dovecot] POP (dot) locks
by Christian Balzer 09 Apr '06

09 Apr '06

Hello, just to soothe my paranoia from many years of qpopper usage, which enforces solitary access to a POP mailbox. Only one login per user is possible at the same time and if a session terminates w/o qpopper being properly notified it will remain locked for some time, 30 minutes by default. With dovecot (0.99.10.4) one can login multiple times (using POP, with IMAP of course this comes as no surprise :) and thus I presume this bit from the configuration: --- # Should we create dotlock file even when we want only a read-lock? Setting # this to yes hurts the performance when the mailbox is accessed simultaneously # by multiple processes, but it's needed for reliable reading if no other # locking methods are available. #mbox_read_dotlock = no --- means that if the only other reading accesses to a (mbox style in this case here) mailbox are via other dovecot processes everything will be fine? Regards, Christian Balzer -- Christian Balzer Network/Systems Engineer NOC chibi(a)gol.com Global OnLine Japan/Fusion Network Services http://www.gol.com/

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RE: [Dovecot] IMAP login name conversion
by Zoong Pham 24 Feb '06

24 Feb '06

> -----Original Message----- > From: Timo Sirainen [mailto:tss@iki.fi] > Sent: Tuesday, 1 June 2004 9:39 PM > To: Zoong Pham > Cc: dovecot(a)dovecot.org > Subject: Re: [Dovecot] IMAP login name conversion > > What passdb and userdb do you use? Unless you're authenticating from > SQL you probably have to modify the source. Let me explain: My server runs OpenBSD-3.5 and Sendmail. We host few virtual domains. Local accounts have login names in this format: login-domain_abc_xyz For example: joedirt-joedomain_com_au, info-adomain_com, info-otherdomain_com That way login accounts are unique across all the virtual domains. I use the OpenBSD pre-compiled dovecot-0.99.10p2. It is set to use "auth_passdb = passwd" and "auth_userdb = passwd" I can use mutt to access my mailbox via IMAPS with login name format joedirt-joedomain_com_au. Other users use different MUA like Outlook and prefer to login with their email addresses (joedirt(a)joedomain.com.au, info(a)adomain.com, info(a)otherdomain.com) We use squirrelmail for webmail. I modified squirrelmail to automatically convert login name from format of joedirt(a)joedomain.com.au to joedirt-joedomain_com_au. So if users use squirrelmail, they can just login with their email addresses. My question is how to achieve the same thing with other MUAs like Outlook? Do I have to modify dovecot source? Can I use LDAP or SQL instead? Note that we are using Sendmail and prefer it than othe MTA. I have looked at the Wiki, specially the "DovecotOpenLdap" but am still confused. Thanks Zoong

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[Dovecot] imap idle on non-inbox?
by Collin Grady 22 Oct '04

22 Oct '04

Can this be done with dovecot? I really like the imap idle feature, but it doesn't work for me because I sort my mail into folders with procmail, so it only notifies me when one drops into inbox and not a subfolder. Is there just an option for this I'm missing, or does support for this not exist yet? Also, I don't think its a client issue as I watched the traffic with tcpdump and it only announced anything for inbox, messages dropping into other folders caused no traffic. -- Collin Grady BOFH excuse #347: The rubber band broke

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[Dovecot] [PATCH] [RFC] epoll based ioloop handler
by Andrey Panin 06 Sep '04

06 Sep '04

Hello, this patch adds ioloop handler using Linux 2.6 epoll API. I'm not sure is it ready for inclusion right now, but it works for me and survives deadconn test with 1024 simultaneous connections. Please take a look and comment. Best regards. -- Andrey Panin | Linux and UNIX system administrator pazke(a)donpac.ru | PGP key: wwwkeys.pgp.net

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[Dovecot] Plaintext Authentication from Localhost
by Paul C. Bryan 06 Sep '04

06 Sep '04

Hi: It appears that at least at one time, Dovecot supported plaintext authentication from localhost, even if disable_plaintext_auth = yes. To wit, the example configuration file reads: # Disable LOGIN command and all other plaintext authentications unless # SSL/TLS is used (LOGINDISABLED capability). Note that 127.*.*.* and # IPv6 ::1 addresses are considered secure, this setting has no effect if # you connect from those addresses. #disable_plaintext_auth = yes On brief inspection of the code, there doesn't seem to be any such support. This is corroborated by the fact that 0.99.10 (Debian package) behaves by disallowing plaintext authentication via connections on localhost. This is a particularly useful feature, as local webmail clients can safely authenticate via the local interface without requiring secure authentication. So, the question is, is Dovecot supposed to support plaintext auth via localhost even if disallowed in dovecot.conf? If so, any suggestions as to what I may be doing wrong? Yours truly, Paul C. Bryan email(a)pbryan.net

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[Dovecot] dovecot+postifx+ldap
by venne 02 Sep '04

02 Sep '04

hi, i'm trying to set a dovecot/pop + postfix couple with ldap authentification. and i'v got a lots of troubles. hers's my dovecot.conf protocols = pop3 login = imap login = pop3 first_valid_gid = 1000 last_valid_gid = 0 mail_extra_groups = mail default_mail_env = maildir:/var/mail/%1u/%u/Maildir mbox_locks = dotlock flock auth = default auth_mechanisms = plain auth_userdb = ldap /etc/dovecot-ldap.conf auth_passdb = ldap /etc/dovecot-ldap.conf auth_verbose = yes here's dovecot-ldap.conf hosts = 192.168.128.1 dn = cn=manager,o=dental-on-line dnpass = dolmaster ldap_version = 3 base = ou=002f83,ou=machines,ou=fr,o=dental-on-line deref = never scope = subtree user_attrs = uid user_filter = (&(objectClass=posixAccount)(uid=%u)) pass_attrs = uid,userPassword pass_filter = (&(objectClass=posixAccount)(uid=%u)) default_pass_scheme = PLAIN user_global_uid = 1000 user_global_gid = 1000 and, a ldif exempl: dn: uid=mwerly, ou=002F83, ou=machines, ou=fr, o=dental-on-line displayName: WERLY Marc shadowExpire: -1 mobile: 000 objectClass: top objectClass: person objectClass: organizationalPerson objectClass: inetOrgPerson objectClass: posixAccount objectClass: shadowAccount userPassword:: eHh4 shadowLastChange: 10000 facsimileTelephoneNumber: 01.43.21.54.75 uid: mwerly uidNumber: 12164 cn: Marc WERLY shadowInactive: -1 loginShell: /bin/bash shadowMin: 0 gidNumber: 100 shadowMax: 999999 gecos: mwerly homeDirectory: /home/mwerly sn: Marc shadowWarning: 99 1 it seems unable to authenticate with pop3-login: Login: mwerly [192.168.1.7] Aug 31 17:47:35 dental01 pop3: I/O leak: 0x8050d70 (0) Aug 31 17:47:35 dental01 pop3: I/O leak: 0x8084db0 (1) :o( 2 if I comment user_global_uid = 1000 user_global_gid = 1000 dovecot can't get uidnumber from ldap, in spite of its presence in ldap entry :'o( 3 postfix seem able to send messages to local virtual users(thanks of ldap/pam ldap authentification). the /var/mail/%u files are up2dated by postfix, but I simply can't get any mails with thoses dovcot logs: pop3-login: Login: mwerly [192.168.1.7] Aug 31 17:47:35 dental01 pop3: I/O leak: 0x8050d70 (0) Aug 31 17:47:35 dental01 pop3: I/O leak: 0x8084db0 (1) :`o[[[[[ please help

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[Dovecot] corrupted .imap.index.log
by Fredrick Backman 02 Sep '04

02 Sep '04

Hi, I'm using version 0.99.10.8 on debian 2.4.26 and am getting this problem, can someone please shed some light over this? Aug 31 13:58:58 xxx imap(someone): file_wait_lock() failed with modify log file /var/mail/someone_new/Maildir/.INBOX/.imap.index.log: Resource temporarily unavailable and then: Aug 31 14:00:58 xxx imap(someone): Couldn't lock modify log file /var/mail/someone_new/Maildir/.INBOX/.imap.index.log and finally: Aug 31 14:26:35 xxx imap(someone): Corrupted modify log file /var/mail/someone_new/Maildir/.INBOX/.imap.index.log: used_file_size larger than real file size (4096 vs 2576) MTA is qmail 1.03 (with procmail v3.22) TIA, Fredrick -- Systemadministration EsPresto AG ----------------------------------------------------------------- backman(a)espresto.com Breite Str. 30-31 Tel/Fax: +49.30.90 226.750/.760 10178 Berlin/Germany

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[Dovecot] sig11 with test36/37 on some emails
by Peter Hessler 01 Sep '04

01 Sep '04

Sometimes I'll get an email from a luser which will cause the POP3 daemon to sig11. The email "appears" to be legal. The sig11s only happen on specific emails, and once I remove the emails from the server, the rest can be downloaded. I gzipped the email, and its at http://theapt.org/bogusemail.gz. While this example is international spam, the sig11s happen with real emails too. -- Entropy isn't what it used to be.

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[Dovecot] Strange behavior
by DR 01 Sep '04

01 Sep '04

Hi, I'm using dovecot under fedora core 2. Nearly everything seems to work. Dovecot was easily to configure and is a really smart program. BUT ... I figured out a problem. Whenever I fetch my mails (pop3s) using Outlook, TheBat or Pegasus, the mails on the server will not be marked as read. Sometimes I don't have a nice GUI mail client, than I use pine (I love it, but I won't feed the trolls ;-)). All messages, which I have already received are marked as new in pine or my webinterface squirrelmail. It seems, that dovecot doesn't mark the messages as read after fetching them. There are no strange entries in the logs, nothing which seems to be mysterious. Can anyone help me? This problem teases me. Cheers, DuRu

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