- dovecot - dovecot.org

[Dovecot] sieve-extprograms strips Return-Path headers
by Ben Morrow 25 Nov '12

25 Nov '12

The sieve-extprograms extension strips Return-Path headers before passing mail off to the external program. The patch to remove this behavious is trivial (and attached), but since it appears to be deliberate I felt I should investigate further. I believe this is basically a cut-and-paste error. The code to strip Return-Path has been there since the sieve-pipe plugin for Dovecot 1.x, and I believe it was copied from the equivalent code in the 'redirect' action for passing mail off to sendmail(8). In that case, stripping Return-Path is correct, since the message is being resubmitted for delivery (by SMTP or otherwise), and the last step of the new delivery will (should) add a new Return-Path header with the new envelope information. In the case of sieve-extprograms, though, the filtering is happening post-delivery, so a stripped Return-Path will never be replaced. Ben

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[Dovecot] SSL certificates
by The Doctor 24 Nov '12

24 Nov '12

Who is the best CA Certificate provider for Dovecot? -- Member - Liberal International This is doctor(a)nl2k.ab.ca Ici doctor(a)nl2k.ab.ca God,Queen and country!Never Satan President Republic!Beware AntiChrist rising! http://www.fullyfollow.me/rootnl2k Merry Christmas 2012 and Happy New Year 2013 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

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[Dovecot] dovecot trying to update my sieve directory
by Mathieu R. 23 Nov '12

23 Nov '12

Hello, i got an error in maillog, dovecot trying tu update my sieve directory : 2012-11-23T11:01:33.943047+00:00 localhost dovecot: imap(mathieu(a)400iso.net): Error: stat(/srv/vmail/400iso.net/mathieu@400iso.net/.dovecot.sieve/tmp) failed: Not a directory this cause no problem but i probably misconfigured something... here is my dovecot.conf : protocols = imap pop3 sieve mail_home = /srv/vmail/%d/%u mail_location = maildir:~ mail_plugins = $mail_plugins quota ssl_cert = </etc/ssl/private/server.crt ssl_key = </etc/ssl/private/server.key service auth { unix_listener auth-client { group = postfix mode = 0660 user = postfix } user = root } passdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol lda { mail_plugins = $mail_plugins sieve postmaster_address = postmaster(a)400iso.net hostname = 400iso.net } managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve # sieve_global_dir = /srv/vmail/sieve/ quota = fs:vm quota quota_rule = *:storage=5G } protocol imap { mail_plugins = $mail_plugins imap_quota } -- Mathieu Rousseau http://400iso.net/

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[Dovecot] Proxy to join two accounts
by Tomek 23 Nov '12

23 Nov '12

Hello, I have server with IMAP on dovecot for user mails and second server on archiveopteryx as mail archive. I'm wondering if it's possible to make some sort of proxy to these two servers in way where: - dovecot server will be main IMAP service with INBOX, etc - I want archiveopteryx account to be something like shared folder with read only access (no delete, no move, etc) in path ex. /archive/user.name - this proxy mappings should allow adding few archive accounts to one user (in case of people replacement) + it will be cool if this mappings could be defined in database so I could write tools to manage archive access for bosses. Is such case possible to achieve with dovecot (any howto or example would be very helpful)? If not - do you know any proxy tools that could allow such configuration? Thanks for any help. Regards, Tomek.

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[Dovecot] v2.1.10: Director director_servers order issue
by Bertrand Jacquin 23 Nov '12

23 Nov '12

Hi, I'm setting up an IMAP/POP cluster using dovecot director for some NFS reasons and I'm getting some troubles with director_servers directive. Configuration is shared on both nodes : director_servers = 10.0.50.50 10.0.50.51 director_mail_servers = 192.168.0.150 192.168.0.151 director_user_expire = 15 min service director { unix_listener login/director { mode = 0666 } fifo_listener login/proxy-notify { mode = 0600 user = $default_login_user } unix_listener director-userdb { mode = 0600 } inet_listener { port = 9090 } } service ipc { unix_listener ipc { user = $default_login_user } } Here 10.0.50.50 is node1, 10.0.50.51 is node2 # ring status on node1 director ip port type last failed 10.0.50.50 9090 self never 10.0.50.51 9090 never # ring status on node2 director ip port type last failed 10.0.50.50 9090 self never 10.0.50.51 9090 never self is the same on both nodes, and that generate some cases that can be observed on logs : # logs on node1 dovecot: director: Error: Remote director thinks it's someone else (connected to 10.0.50.51:9090, remote says it's 10.0.50.50:9090) And this is true, TCP packet contain bad DATA : # tcpdump -i eth0 -nn src host 10.0.50.51 and port 9090 -s 0 -w - -l | strings | egrep '^ME' ME 10.0.50.50 9090 # logs on node2 dovecot: director: Error: connect(10.0.50.51:9090) failed: Invalid argument Invalid argument is present as bind() is not done with the appropriate IP : # strace -p 6063 -fF -s 1024 -e trace=bind,connect bind(28, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("10.0.50.50")}, 16) = 0 connect(28, {sa_family=AF_INET, sin_port=htons(9090), sin_addr=inet_addr("10.0.50.51")}, 16) = -1 EINVAL (Invalid argument) Also, during this time, CPU is ~100% used. bind() is done with node1 IP address. I also tested using a DNS : director_servers = director-all director-all is two A entries, first containing 10.0.50.50, second 10.0.50.51 and the result here is exactly the same. Using two configurations : # director_servers on node1 director_servers = 10.0.50.50 10.0.50.51 # director_servers on node2 director_servers = 10.0.50.51 10.0.50.50 Give the same result as showed before : # ring status on node1 director ip port type last failed 10.0.50.50 9090 self never 10.0.50.51 9090 never # ring status on node2 director ip port type last failed 10.0.50.50 9090 self never 10.0.50.51 9090 never It seems that first sorted entry in director_servers is considered as "self". I'm using dovecot 2.1.10-0~auto+55 debian package from rename-it repository. Thanks for your help. -- Beber

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[Dovecot] doveadm fails with passdb authentication binds (dovecot 2.0.16)
by mailing lists 23 Nov '12

23 Nov '12

Hello, I'm testing passdb auth binds with dovecot 2.0.16, but for some reason dovedm fails to work with the configuration showed below. The network trace shows the successful bind for the administrative user (uid=mailapp), but nothing for the mail user (uid=user001). what am i missing here? # doveadm mailbox list -u user001 doveadm(user001): Error: user user001: Auth PASS lookup failed doveadm(user001): Fatal: passdb lookup failed 10-auth.conf: ==================== disable_plaintext_auth = no auth_cache_size = 0 auth_cache_ttl = 0 auth_cache_negative_ttl = 0 auth_mechanisms = plain !include auth-ldap.conf.ext auth-ldap.conf.ext: ===================================== passdb { driver = ldap args = /etc/dovecot/passdb-dovecot-ldap.conf.ext } userdb { driver = ldap args = /etc/dovecot/userdb-dovecot-ldap.conf.ext } passdb-dovecot-ldap.conf.ext: ===================================== uris = ldap://ldap.example.com dn = uid=mailapp,ou=People,dc=example,dc=com dnpass = xxxxxxxxxx sasl_bind = no tls = no auth_bind = yes ldap_version = 3 base = dc=example,dc=com deref = never scope = subtree pass_attrs = uid=user pass_filter = (uid=%n) userdb-dovecot-ldap.conf.ext: ==================================== uris = ldap://ldap.example.com dn = uid=mailapp,ou=People,dc=example,dc=com dnpass = xxxxxxxxxx sasl_bind = no tls = no auth_bind = yes ldap_version = 3 base = dc=example,dc=com deref = never scope = subtree user_attrs = mailbox=mail=maildir:/var/maildir/%$,homeFilter=home,mailQuota=quota_rule=*:bytes=%$ user_filter = (&(objectClass=posixAccount)(uid=%n)) pass_attrs = uid=user,userPassword=password,\ mailbox=userdb_mail=maildir:/var/maildir/%$,homeFilter=userdb_home,mailQuota=userdb_quota_rule=*:bytes=%$ pass_filter = (&(objectClass=posixAccount)(uid=%n)) iterate_attrs = uid=user iterate_filter = (objectClass=posixMailAccount)

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[Dovecot] whoson plugin for 2.0
by Chuck Cochems 23 Nov '12

23 Nov '12

I have found a plugin at ftp://ftp.ufanet.ru/pub/boco/dovecot/whoson-plugin/ I was able to make it function on a dovecot 1.2.8 server, by changing __attr_unused__ to ATTR_UNUSED and strlcpy to i_strocpy (since glibc doesn't HAVE strlcpy, on purpose). However, it doesn't work with 2.1 this is, of course, because getenv() no longer functions lie it used to in plugins. so i need a replacement for getenv("IP") and getenv("USER") to make this work. i know, pop before SMTP is stupid, but the isp i'm doing this for hs customers that have used pop before smtp for ages. so I MUST make a whoson plugin. as i said, the remote ip and the email address are required to interface with whoson. (this is superior to DRAC, which just opens the IP)

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[Dovecot] Initial status notification not received
by Nicolas KOWALSKI 23 Nov '12

23 Nov '12

Hello, We have SLES-11 SP2 Xen VMs running dovecot as IMAP proxies. At VMs startup, dovecot almost always shows these errors: Nov 16 14:29:19 server dovecot: master: Dovecot v2.1.10 starting up (core dumps disabled) Nov 16 14:29:55 server dovecot: master: Error: service(anvil): Initial status notification not received in 30 seconds, killing the process Nov 16 14:29:55 server dovecot: master: Error: service(log): Initial status notification not received in 30 seconds, killing the process Nov 16 14:29:55 server dovecot: master: Error: service(ssl-params): Initial status notification not received in 30 seconds, killing the process Nov 16 14:29:55 server dovecot: master: Error: service(log): child 3591 killed with signal 9 As the last line tells, dovecot stops logging information. We have to restart the dovecot processes to get back normal behaviour. I also tried to set idle_kill values to services definitions, without success. Is there a way to prevent these errors? Here is the dovecot -n output: # 2.1.10: /etc/dovecot/dovecot.conf # OS: Linux 3.0.42-0.7-xen x86_64 SUSE Linux Enterprise Server 11 (x86_64) default_client_limit = 4096 default_idle_kill = 5 mins default_process_limit = 16384 listen = 10.254.251.18 managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave namespace inbox { inbox = yes location = mailbox Drafts { special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { special_use = \Sent } mailbox "Sent Messages" { special_use = \Sent } mailbox Trash { special_use = \Trash } prefix = } passdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } plugin { sieve = ~/.dovecot.sieve sieve_dir = ~/sieve } protocols = imap sieve service anvil { client_limit = 65536 idle_kill = 0 } service auth { client_limit = 32768 } service imap-login { inet_listener imap { port = 0 } } service imap { process_limit = 0 } service log { idle_kill = 0 } service managesieve { process_limit = 0 } service ssl-params { idle_kill = 0 } ssl_ca = </etc/dovecot/ssl/ca.pem ssl_cert = </etc/dovecot/ssl/server-crt.pem ssl_key = </etc/dovecot/ssl/server-key.pem userdb { args = /etc/dovecot/dovecot-ldap.conf.ext driver = ldap } protocol sieve { passdb { args = /etc/dovecot/dovecot-ldap-sieve.conf.ext driver = ldap } } Thanks, -- Nicolas

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[Dovecot] User iteration with static userdb
by Radek Novotný 23 Nov '12

23 Nov '12

Hi all, can someone explain me, please, why user iteration (iterate_query) doesn't work with static userdb? There isn't reason why it shouldn't work. In my opinion. However static userdb doesn't mean that user list not exist. Thanks Radek

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[Dovecot] Is there a hook for a plugin to do some transient operation on the mail body ...
by Jay 23 Nov '12

23 Nov '12

... when the MUA has issued a FETCH? I am a Dovecot newbie ... so please bear with me if this is obvious. Basically what I am trying to do is process the mail body (in my own specific way) before Dovecot serves it up to the MUA. I want to do it as a transient operation in memory. So think of the scenario as ... - the MUA issues a FETCH - Dovecot intercepts the FETCH - Dovecot internally gets the mail from the storage into a buffer in memory ----> This is where I'd like to apply a function to the mail body and modify the mail body in the buffer (not in the storage) - Dovecot serves up the (modified) mail to the MUA Looking for a hook that allows me to do it using a plugin. Looks like the zlib plugin does something similar ... applies a decompression function ... but I am not 100% sure. Thanks for your help. -- J.

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