[Dovecot] [Urgent] Email Retrieval from remote servers doesn't use Dovecot
Shazia Javed
shazia at ut.ee
Wed Jun 29 15:19:58 EEST 2011
------------------------
Dovecot Version:
------------------------
2.0.13
------------------------
Output of "dovecot -n":
------------------------
# 2.0.13: /usr/local/etc/dovecot/dovecot.conf
# OS: Linux 2.6.35-28-generic x86_64 Ubuntu 10.10 ext4
mail_location = maildir:/home/%u/Maildir
passdb {
args = %s
driver = pam
}
protocols = imap pop3
ssl = no
userdb {
driver = passwd
}
protocol imap {
imap_client_workarounds = tb-extra-mailbox-sep
}
protocol pop3 {
pop3_uidl_format = %08Xu%08Xv
}
---------------------------
Objective:
---------------------------
We need to download emails from remote server using Dovecot and
thunderbird. Our objective is to store emails in maildir or mbox format,
and process them as part of our research project.
---------------------------
Problem:
---------------------------
Dovecot works for localhost, but not for remote servers. How do I know?
Because thunderbird downloads emails in its default location (specified in
settings) and not in maildir or mbox folders. If I send mail to
<user>@<system_name> using mail command, dovecot works and thunderbird
shows the email stored in maildir folder. But for email from
<id>@yahoo.com goes to thunderbird's default folder and are browsed from
there.
---------------------------
Relevant Technical Details:
---------------------------
ps auxw|grep "dovecot\|imap\|pop3"
root 1033 0.0 0.0 52796 1916 ? Ss 12:45 0:00
/usr/sbin/dovecot -F -c /etc/dovecot/dovecot.conf
root 1173 0.0 0.0 75096 3284 ? S 12:45 0:00 dovecot-auth
root 1214 0.0 0.0 75188 3424 ? S 12:45 0:00
dovecot-auth -w
dovecot 8356 0.0 0.0 50528 2692 ? S 13:30 0:00 pop3-login
dovecot 8357 0.0 0.0 50528 2692 ? S 13:30 0:00 pop3-login
dovecot 8358 0.0 0.0 50528 2688 ? S 13:30 0:00 pop3-login
dovecot 8359 0.0 0.0 50528 2688 ? S 13:30 0:00 pop3-login
dovecot 8360 0.0 0.0 50528 2688 ? S 13:30 0:00 pop3-login
dovecot 8364 0.0 0.0 50540 2688 ? S 13:30 0:00 imap-login
dovecot 8375 0.0 0.0 50540 2692 ? S 13:30 0:00 imap-login
dovecot 8378 0.0 0.0 50540 2684 ? S 13:30 0:00 imap-login
shaz 9048 0.0 0.0 8956 864 pts/0 S+ 15:06 0:00 grep
--color=auto dovecot\|imap\|pop3
sudo netstat -lnptu
[sudo] password for shaz:
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State
PID/Program name
tcp 0 0 0.0.0.0:110 0.0.0.0:* LISTEN
1033/dovecot
tcp 0 0 0.0.0.0:143 0.0.0.0:* LISTEN
1033/dovecot
tcp 0 0 0.0.0.0:64277 0.0.0.0:* LISTEN
2068/skype
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN
1295/cupsd
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN
1389/master
tcp 0 0 0.0.0.0:993 0.0.0.0:* LISTEN
1033/dovecot
tcp 0 0 0.0.0.0:995 0.0.0.0:* LISTEN
1033/dovecot
tcp6 0 0 ::1:631 :::* LISTEN
1295/cupsd
udp 0 0 127.0.0.1:45902 0.0.0.0:*
2068/skype
udp 0 0 0.0.0.0:33754 0.0.0.0:*
1065/avahi-daemon:
udp 0 0 0.0.0.0:5353 0.0.0.0:*
1065/avahi-daemon:
udp 0 0 0.0.0.0:68 0.0.0.0:*
2132/dhclient
udp 0 0 0.0.0.0:64277 0.0.0.0:*
2068/skype
udp6 0 0 :::5353 :::*
1065/avahi-daemon:
udp6 0 0 :::50994 :::*
1065/avahi-daemon:
sudo lsof -i | grep LISTEN
dovecot 1033 root 6u IPv4 7578 0t0 TCP *:imap2 (LISTEN)
dovecot 1033 root 7u IPv4 7579 0t0 TCP *:imaps (LISTEN)
dovecot 1033 root 9u IPv4 7580 0t0 TCP *:pop3 (LISTEN)
dovecot 1033 root 10u IPv4 7581 0t0 TCP *:pop3s (LISTEN)
cupsd 1295 root 5u IPv6 7932 0t0 TCP Casper:ipp (LISTEN)
cupsd 1295 root 6u IPv4 7933 0t0 TCP
localhost.localdomain:ipp (LISTEN)
master 1389 root 12u IPv4 9284 0t0 TCP *:smtp (LISTEN)
skype 2068 shaz 67u IPv4 18344 0t0 TCP *:64277 (LISTEN)
pop3-logi 8356 dovecot 4u IPv4 7580 0t0 TCP *:pop3 (LISTEN)
pop3-logi 8356 dovecot 5u IPv4 7581 0t0 TCP *:pop3s (LISTEN)
pop3-logi 8357 dovecot 4u IPv4 7580 0t0 TCP *:pop3 (LISTEN)
pop3-logi 8357 dovecot 5u IPv4 7581 0t0 TCP *:pop3s (LISTEN)
pop3-logi 8358 dovecot 4u IPv4 7580 0t0 TCP *:pop3 (LISTEN)
pop3-logi 8358 dovecot 5u IPv4 7581 0t0 TCP *:pop3s (LISTEN)
pop3-logi 8359 dovecot 4u IPv4 7580 0t0 TCP *:pop3 (LISTEN)
pop3-logi 8359 dovecot 5u IPv4 7581 0t0 TCP *:pop3s (LISTEN)
pop3-logi 8360 dovecot 4u IPv4 7580 0t0 TCP *:pop3 (LISTEN)
pop3-logi 8360 dovecot 5u IPv4 7581 0t0 TCP *:pop3s (LISTEN)
imap-logi 8364 dovecot 4u IPv4 7578 0t0 TCP *:imap2 (LISTEN)
imap-logi 8364 dovecot 5u IPv4 7579 0t0 TCP *:imaps (LISTEN)
imap-logi 8375 dovecot 4u IPv4 7578 0t0 TCP *:imap2 (LISTEN)
imap-logi 8375 dovecot 5u IPv4 7579 0t0 TCP *:imaps (LISTEN)
imap-logi 8378 dovecot 4u IPv4 7578 0t0 TCP *:imap2 (LISTEN)
imap-logi 8378 dovecot 5u IPv4 7579 0t0 TCP *:imaps (LISTEN)
telnet 127.0.0.1 110
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
+OK Dovecot ready.
telnet 127.0.0.1 143
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE
STARTTLS AUTH=PLAIN] Dovecot ready.
1 logout
* BYE Logging out
1 OK Logout completed.
Connection closed by foreign host.
telnet mail.ut.ee 110
Trying 193.40.5.156...
Connected to mailhost.ut.ee.
Escape character is '^]'.
+OK POP3 ready
quit
+OK
Connection closed by foreign host.
telnet mail.ut.ee 143
Trying 193.40.5.156...
Connected to mailhost.ut.ee.
Escape character is '^]'.
* OK IMAP4 ready
1 logout
* BYE
1 OK completed
Connection closed by foreign host.
-----------------
Commentary:
-----------------
As is obvious from the commands and output listed above that dovecot is
running, listening on 110 and 143 - but only for localhost. When I try to
telnet mail.ut.ee 110/143 I get to see IMAP4/POP3 ready rather than
Dovecot ready.
-----------------
Queries
-----------------
Shouldn't I get "Dovecot ready" message for remote servers as well? It is
an MRA and we shouldn't be required to install it on remote servers,
right? What should I do to make dovecot work for remote servers?
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