I have tested also with lmtp.pl script to send a message directly to the lmtp port, to exclude a sendmail issue and also this email keeps being locally delivered. I tried with changing the userdb with default fields, also does not work. This forwarding between backend servers should work not?
Dec 16 21:02:56 svr1 dovecot: lmtp(test): Debug: Added userdb setting: plugin/host=svr2 Dec 16 21:02:56 svr1 dovecot: lmtp(test): Debug: Added userdb setting: plugin/proxy=y
-----Original Message----- To: aki.tuomi; dovecot Subject: RE: Local lmtp proxy on backend server
I am staring constantly at the same logs, this is what I get from dovecot[1]. Sendmail[2] is sending with test@svr1 maybe this overrides lmtp proxying? This is a test with a special-userdb passwd-file also having host=svr2
[1] Dec 16 16:30:16 svr1 dovecot: lmtp(16466): Debug: none: root=, index=, indexpvt=, control=, inbox=, alt= Dec 16 16:30:16 svr1 dovecot: lmtp(16466): Connect from local Dec 16 16:30:16 svr1 dovecot: auth: Debug: master in: PASS#0111#011test#011service=lmtp Dec 16 16:30:16 svr1 dovecot: auth: Debug: passwd(test): cache miss Dec 16 16:30:16 svr1 dovecot: auth-worker(16468): Debug: Loading modules from directory: /usr/lib64/dovecot/auth Dec 16 16:30:16 svr1 dovecot: auth-worker(16468): Debug: Module loaded: /usr/lib64/dovecot/auth/lib20_auth_var_expand_crypt.so Dec 16 16:30:16 svr1 dovecot: auth-worker(16468): Debug: Module loaded: /usr/lib64/dovecot/auth/libdriver_sqlite.so Dec 16 16:30:16 svr1 dovecot: auth-worker(16468): Debug: passwd-file /etc/dovecot/special-userdb: Read 1 users in 0 secs Dec 16 16:30:16 svr1 dovecot: auth-worker(16468): Debug: passwd(test): lookup Dec 16 16:30:16 svr1 dovecot: auth-worker(16468): passwd(test): invalid password field '*' Dec 16 16:30:16 svr1 dovecot: auth: Debug: passdb out: NOTFOUND#0111 Dec 16 16:30:16 svr1 dovecot: lmtp(16466): Debug: auth PASS input: Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: Loading modules from directory: /usr/lib64/dovecot Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: Module loaded: /usr/lib64/dovecot/lib15_notify_plugin.so Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: Module loaded: /usr/lib64/dovecot/lib90_sieve_plugin.so Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: Module loaded: /usr/lib64/dovecot/libstorage_rbox_plugin.so Dec 16 16:30:16 svr1 dovecot: auth: Debug: master in: USER#0112#011test#011service=lmtp Dec 16 16:30:16 svr1 dovecot: auth: Debug: passwd-file(test): lookup: user=test file=/etc/dovecot/special-userdb Dec 16 16:30:16 svr1 dovecot: auth: Debug: userdb out: USER#0112#011test#011uid=8267#011gid=231#011home=/home/popusers/test Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: auth USER input: test uid=8267 gid=231 home=/home/popusers/test Dec 16 16:30:16 svr1 dovecot: lmtp(16466, test): Debug: Effective uid=8267, gid=231, home=/home/popusers/test Dec 16 16:30:16 svr1 dovecot: lmtp(16466, test): Debug: Namespace inbox: type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, subscriptions=yes location=rbox:~/rbox:INDEX=/home/popindex/test/index Dec 16 16:30:16 svr1 dovecot: lmtp(16466, test): Debug: fs: root=/home/popusers/test/rbox, index=/home/popindex/test/index, indexpvt=, control=, inbox=, alt= Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: sieve: Pigeonhole version 0.4.24 (124e06aa) initializing Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: sieve: include: sieve_global is not set; it is currently not possible to include `:global' scripts. Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: +FIiFQij911SQAAAzJXYRg:
sieve: file storage: Using active Sieve script path: /home/popusers/test/.dovecot.sieve Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: +FIiFQij911SQAAAzJXYRg:
sieve: file storage: Using script storage path: /home/popusers/test/sieve Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: +FIiFQij911SQAAAzJXYRg:
sieve: file storage: Relative path to sieve storage in active link: sieve/ Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: +FIiFQij911SQAAAzJXYRg:
sieve: file storage: Using Sieve script path: /home/popusers/test/.dovecot.sieve Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: +FIiFQij911SQAAAzJXYRg:
sieve: file script: Opened script managesieve' from /home/popusers/test/.dovecot.sieve'
Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: +FIiFQij911SQAAAzJXYRg:
sieve: Using the following location for user's Sieve script: /home/popusers/test/.dovecot.sieve Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: Mailbox <lmtp DATA>: Opened mail UID=1 because: header Message-ID (Cache file is unusable) Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: +FIiFQij911SQAAAzJXYRg:
sieve: Opening script 1 of 1 from `/home/popusers/test/.dovecot.sieve' Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: +FIiFQij911SQAAAzJXYRg:
sieve: Loading script /home/popusers/test/.dovecot.sieve Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: +FIiFQij911SQAAAzJXYRg:
sieve: Script binary /home/popusers/test/.dovecot.svbin successfully loaded Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: +FIiFQij911SQAAAzJXYRg: sieve: binary save: not saving binary /home/popusers/test/.dovecot.svbin, because it is already stored Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: +FIiFQij911SQAAAzJXYRg: sieve: Executing script from `/home/popusers/test/.dovecot.svbin' Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: INBOX: Mailbox opened because: lib-lda delivery Dec 16 16:30:16 svr1 dovecot: lmtp(test): Debug: Mailbox <lmtp DATA>: Opened mail UID=1 because: copying Dec 16 16:30:16 svr1 dovecot: lmtp(test): +FIiFQij911SQAAAzJXYRg: sieve:
msgid=201912161530.xBGFUF9A016463@svr1.roosit.eu: stored mail into mailbox 'INBOX' Dec 16 16:30:16 svr1 dovecot: lmtp(16466): Disconnect from local: Successful quit
[2] Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: --- 250-PIPELINING Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: --- 250-8BITMIME Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: --- 250-SIZE 52428800 Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: --- 250-DSN Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: --- 250-ETRN Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: --- 250-AUTH LOGIN PLAIN Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: --- 250-DELIVERBY Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: --- 250 HELP Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: <-- MAIL From:root@svr1.xxxxx.xxx SIZE=216 AUTH=root@svr1.xxxxx.xxx Dec 16 16:30:16 svr1 sendmail[16464]: ruleset=trust_auth, arg1=root@svr1.xxxxx.xxx, relay=localhost [127.0.0.1], reject=550 5.7.1 root@svr1.xxxxx.xxx... not authenticated Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: --- 250 2.1.0 root@svr1.xxxxx.xxx... Sender ok Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: <-- RCPT To:test@svr1.xxxxx.xxx Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: --- 250 2.1.5 test@svr1.xxxxx.xxx... Recipient ok Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: <-- DATA Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: --- 354 Enter mail, end with "." on a line by itself Dec 16 16:30:16 svr1 sendmail[16464]: STARTTLS=read, info: fds=11/4, err=2 Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: from=root@svr1.xxxxx.xxx, size=467, class=0, nrcpts=1, msgid=201912161530.xBGFUF9A016463@svr1.xxxxx.xxx, proto=ESMTP, daemon=MTA, relay=localhost [127.0.0.1] Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm7016464: --- 250 2.0.0 xBGFUGm7016464 Message accepted for delivery Dec 16 16:30:16 svr1 sendmail[16463]: xBGFUF9A016463: to=test, ctladdr=root (0/0), delay=00:00:01, xdelay=00:00:00, mailer=relay, pri=30216, relay=[127.0.0.1] [127.0.0.1], dsn=2.0.0, stat=Sent (xBGFUGm7016464 Message accepted for delivery) Dec 16 16:30:16 svr1 sendmail[16464]: STARTTLS=read, info: fds=11/4, err=2 Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm8016464: <-- QUIT Dec 16 16:30:16 svr1 sendmail[16464]: xBGFUGm8016464: --- 221 2.0.0 svr1.xxxxx.xxx closing connection Dec 16 16:30:16 svr1 sendmail[16465]: last message repeated 2 times Dec 16 16:30:16 svr1 sendmail[16465]: xBGFUGm7016464: to=test@svr1.xxxxx.xxx, ctladdr=root@svr1.xxxxx.xxx (0/0), delay=00:00:00, xdelay=00:00:00, mailer=local, pri=30753, relay=localhost, dsn=2.0.0, stat=Sent Dec 16 16:30:16 svr1 sendmail[16465]: xBGFUGm7016464: done; delay=00:00:00, ntries=1
-----Original Message----- To: aki.tuomi; dovecot Subject: RE: Local lmtp proxy on backend server
Hi Aki,
If I adapt this configuration on svr1 like this[0], should the mail not be delivered at svr2 passdb { driver = pam # [session=yes] [setcred=yes] [failure_show_msg=yes] [max_requests=<n>] # [cache_key=<key>] [<service name>] #args = dovecot default_fields = proxy=y host=svr2 } passdb { driver = passwd skip = authenticated default_fields = proxy=y host=svr2 }
-----Original Message----- From: Aki Tuomi [mailto:aki.tuomi@open-xchange.com] Sent: 16 December 2019 06:22 To: Marc Roos; dovecot Subject: Re: Local lmtp proxy on backend server
On 15/12/2019 23:09 Marc Roos < m.roos@f1-outsourcing.eu> wrote:
I receive a local mail when I do a 'mail test' on a backend svr1 with this[0] configuration. However when I just add only one configuration change 'lmtp_proxy = yes' I am getting these errors[1]. I would expect this email to still be delivered locally, should this be working or
do I misunderstand the lmtp proxy functionality?
[0]
passdb {
args =
auth_verbose = default
default_fields = proxy=y host=svr1
deny = no
driver = pam
[1]
Dec 15 23:28:48 svr1 dovecot: lmtp(9270): Debug: none: root=, index=, indexpvt=, control=, inbox=, alt= Dec 15 23:28:48 svr1 dovecot: lmtp(9270): Connect from local Dec 15 23:28:48 svr1 dovecot: auth: Debug: master in: PASS#0111#011test#011service=lmtp Dec 15 23:28:48 svr1 dovecot: auth: Debug: pam(test): passdb doesn't support credential lookups Dec 15 23:28:48 svr1 dovecot: auth: Debug: passdb out: FAIL#0111#011reason=Configured passdbs don't support credentials lookups Dec 15 23:28:48 svr1 dovecot: lmtp(9270): Debug: user test: Auth PASS lookup returned temporary failure: reason=Configured passdbs don't support credentials lookups Dec 15 23:28:48 svr1 dovecot: lmtp(9270): Debug: auth PASS input: reason=Configured passdbs don't support credentials lookups
dovecot-pigeonhole-2.2.36-3.el7_7.1.x86_64
dovecot-2.2.36-3.el7_7.1.x86_64 PAM does not support looking up users, so you cannot use it for LMTP proxying. Try adding
passdb { driver = passwd skip = authenticated }
after PAM block.
Aki Tuomi