March 2011 - dovecot - dovecot.org

[Dovecot] Interesting tool for debugging IMAP sessions
by Charles Marcus 08 Mar '11

08 Mar '11

For anyone who is interested: http://www.aboutmyip.com/AboutMyXApp/ImapProxy.jsp They also have one for troubleshooting smtp (smtpProxy)... -- Best regards, Charles

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Re: [Dovecot] auth on tcp socket?
by Hajo Locke 08 Mar '11

08 Mar '11

Hello, sorry, iam digest reader, always creating a new message... > > > there are some warnings in log: > > > "when SASL type is "dovecot", SASL path "inet:localhost:1434" should > > > be a > > > socket pathname" > > > ( Datei src/xsasl/xsasl_dovecot_server.c ) > > > > file xsasl_dovecot_server.c is in postfix sources but was written by > > you, > > Timo > The initial version, yes, but it has been heavily modified since. I > never added that warning. > > Should there also made an update to support auth on tcp-socket without > > warnings from postfix side? > Looks like someone already added the inet: support, so I guess it should > work. You could ask on Postfix list to get the warning removed.. wietse dont wants to change anything until it is not documented http://archives.neohapsis.com/archives/postfix/2011-03/0356.html may be the developers should talk directly to each other, i dont like to get forwarded to each other list to ask for reliability of features... Thanks, Hajo

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Re: [Dovecot] Multiple Concurrent IMAP Connections For Same User
by Stan Hoeppner 08 Mar '11

08 Mar '11

Knute Johnson put forth on 3/5/2011 8:36 PM: > On 03/05/2011 12:24 PM, Stan Hoeppner wrote: >> Stan Hoeppner put forth on 3/5/2011 1:34 PM: >> Also, did you delete the sync copies and the GLODA sqlite index file >> from the user profile? IIRC, TB will still read the files if they >> exist, even after disabling their parent function. TB just won't write >> to them any more. Yes, it's stupid, I agree. But I recall running into >> this problem and needing to delete all the cached mbox files and the >> sqlite db to get everything working correctly. >> >> Specifically answering your "change" question, the one big difference >> between TB 3 and TB 2 is GLODA, and there have been a large number of >> problems with it. I noticed some of them on day one and disabled it. >> >> I use both TB and RoundCube. With both open, I can delete a group of >> messages in RC in an IMAP subfolder and the messages automatically >> disappear from my TB view in about 5 seconds, and remain gone. I just >> performed a test deleting a group of 8 messages via RC in an IMAP >> subfolder containing list mail from linux-ide. It works fine the other >> way around as well, though I must manually refresh RC as it's a >> stateless web app. I just deleted 6 messages in TB, and simply clicking >> the folder in RC showed the messages were gone. Deleting a message via >> RC in INBOX required punching the Get Mail button in TB to reveal the >> message had been deleted. Not sure why the INBOX case required a manual >> refresh. The messages are all is still gone, after closing and opening >> TB again. >> >> I don't recall ever having the problem you describe, using TB 3.0 >> through TB 3.1.9, and Dovecot 1.0.15 through 1.2.15. My point is that >> TB and Dovecot can be configured properly to eliminate this problem >> you're having. > > Thanks very much for this post as I have been having the same problems > with TB and my phone. I did the things you posted but when I delete a > message on my phone it doesn't always get deleted in TB. Sometimes it > disappears right a way and other times it never goes but it is better > than before when it would never delete on TB. If you're not doing local sync with TB and you have GLODA disabled, TB is going to show you exactly what's in your Dovecot mailbox. If the message doesn't disappear from your TB view sometime after deleting it on your smartphone, then I'd say it's very likely that Dovecot didn't receive the delete and/or expunge command from the phone. Check your Dovecot logs and see what the phone is actually sending, or not sending. Both of you mentioned problems specifically WRT smartphones. It's likely the IMAP implementation in these phones is simply buggy, or your network coverage is spotty. I don't use a smartphone so I can't really say. What smartphone are you each using? -- Stan

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[Dovecot] logging sent messages
by Hajo Locke 08 Mar '11

08 Mar '11

Hello, i use plugin mail_log to see more activities like copy/delete/expunge caused by imap-users. unfortunately there is no log-line when a mail was sent and the copy was uploaded to "Sent-Folder". Isn't it a common imap-copy operation requested by client? How to log this? Thanks, Hajo

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[Dovecot] Curious problem: Plaintext authentication disallowed on non-secure (SSL/TLS) [read: all] connections.
by Andrew Lewis 08 Mar '11

08 Mar '11

Hello all, I've set up a new instance of dovecot 2.0.9 to use as a POP3/IMAP proxy. On trying to login I am told '-ERR Plaintext authentication disallowed on non-secure (SSL/TLS) connections'. I have set 'disable_plaintext_auth = no' (see output of doveconf attached). More curious still is that *this happens for SSL connections too*. Something seems very wrong here. Yelp? -- Andrew Lewis <andrew(a)sybaweb.com> ______________________________________ < Uncompensated overtime? Just Say No. > -------------------------------------- \ ^__^ \ (oo)\_______ (__)\ )\/\ ||----w | || ||

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[Dovecot] POP3 error
by Thierry de Montaudry 08 Mar '11

08 Mar '11

Hi, Since we upgraded to 2.0.9 (from 1.10 stock CentOS release), we are getting some errors with pop3. When the machines get busy, now and then it start with the following: > Mar 7 11:19:51 xxx dovecot: pop3-login: Error: net_connect_unix(pop3) failed: Resource temporarily unavailable And it generates hundreds of those before the machines dies, with the web server getting stuck as well on imap sessions, even though there is no imap error messages. I tried to lookup in the source where this is generated, but couldn't find it. Is it some resource limit on the machine? Please see bellow the dovecot -n output. Regards, Thierry # 2.0.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.18-194.32.1.el5 x86_64 CentOS release 5.5 (Final) nfs auth_cache_negative_ttl = 0 auth_cache_size = 2 M auth_cache_ttl = 10 mins auth_mechanisms = plain login dict { expire = mysql:/etc/dovecot/dovecot-dict-expire.conf.ext quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext } disable_plaintext_auth = no first_valid_uid = 25 lda_mailbox_autocreate = yes lda_mailbox_autosubscribe = yes mail_access_groups = vmail mail_fsync = always mail_gid = 25 mail_location = maildir:/var/virtual/%d/%1n/%2n/%n:INDEX=/var/indexes/%d/%1n/%2n/%n mail_nfs_index = yes mail_nfs_storage = yes mail_plugins = quota expire mail_uid = 25 mbox_write_locks = fcntl mmap_disable = yes passdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { expire = Trash expire2 = Trash/* expire3 = Spam expire4 = Trash/* expire_dict = proxy::expire quota = dict:User quota::proxy::quota quota_rule = *:storage=2G quota_rule2 = Trash:storage=+100M sieve_global_path = /var/indexes/dovecot-default.sieve } postmaster_address = postmaster(a)XXXXXX.YY protocols = imap pop3 service auth { unix_listener auth-userdb { group = vmail mode = 0600 user = vmail } } service dict { unix_listener dict { group = vmail mode = 0600 user = vmail } } service imap-login { inet_listener imap { address = 127.0.0.1 port = 143 } process_min_avail = 2 service_count = 0 vsz_limit = 256 M } service imap { process_limit = 768 } service pop3-login { inet_listener pop3 { address = 0.0.0.0 port = 110 } process_limit = 200 process_min_avail = 2 service_count = 0 } service pop3 { process_limit = 256 } ssl = no ssl_cert = </etc/pki/dovecot/certs/dovecot.pem ssl_key = </etc/pki/dovecot/private/dovecot.pem userdb { driver = prefetch } userdb { args = /etc/dovecot/dovecot-sql.conf.ext driver = sql } userdb { args = uid=vmail gid=vmail driver = static } protocol lmtp { mail_plugins = quota expire sieve } protocol lda { mail_plugins = quota expire sieve } protocol imap { mail_plugins = quota expire imap_quota } protocol pop3 { mail_max_userip_connections = 2 pop3_fast_size_lookups = yes }

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[Dovecot] Unable to view all folders
by Joy 08 Mar '11

08 Mar '11

Dear All, I have upgraded dovecot to v2.0.11 and now having one issue, i am unable to see all my folders only Inbox and Trash are visible while autocreate creating 5 more folders. What could be the issue checked via telnet as well. Thanks

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[Dovecot] upgrading from old version 1.1.2 to version 2.0.11
by dhottinger＠harrisonburg.k12.va.us 08 Mar '11

08 Mar '11

Im getting ready to upgrade our production server from version 1.1.2 to version 2.0.11. Ive read through the upgrade info. Is there any other gotcha's I should be aware of? thanks, ddh -- Dwayne Hottinger Network Administrator Harrisonburg City Public Schools "Everything should be made as simple as possible, but not simpler." -- Albert Einstein "The hottest places in Hell are reserved for those who, in times of moral crisis, preserved their neutrality." -- Dante

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[Dovecot] STARTTLS MITM in Postfix
by Timo Sirainen 07 Mar '11

07 Mar '11

http://marc.info/?l=postfix-users&m=129952854117623&w=2 Dovecot doesn't have this bug. It discards all buffered data when STARTTLS command runs. (Why do I think I've heard about this bug before? Or at least the same type of way to exploit it? Maybe there was another similarly exploitable bug.)

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[Dovecot] tls bug
by Robert Schetterer 07 Mar '11

07 Mar '11

Hi Timo is dovecot affected in this ? http://www.kb.cert.org/vuls/id/555316 -- Best Regards MfG Robert Schetterer Germany/Munich/Bavaria

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