I've just taken over support for an OS X Server (v10.6.8) box, and am a bit
new at Postfix & Dovecot.
We're having an problem where, intermittently, dovecot seems to be bouncing
messages inbound for some of my existing users.
Here is the mail.log entry for a successful delivery:
Aug 21 16:58:45 mail postfix/pipe[64094]: D68783AE0F75: to=<sblondin at
eem.ca>, relay=dovecot, delay=0.08, delays=0/0.01/0/0.07, dsn=2.0.0,
status=sent (delivered via dovecot service)
And here is what a bounce looks like
Aug 22 07:29:28 mail postfix/local[93916]: error: od[getpwnam_ext]: No record
for user sblondin
Aug 22 07:29:28 mail postfix/pipe[93944]: 852C43AE7ACC: to=<sblondin at
eem.ca>, relay=dovecot, delay=15, delays=0.14/0.05/0/15, dsn=5.1.1,
status=bounced (user unknown)
And a bit later another succcessful delivery.
Aug 22 07:56:37 mail postfix/pipe[95021]: 14AF73AE82F0: to=<sblondin at
eem.ca>, relay=dovecot, delay=0.5, delays=0.08/0.02/0/0.4, dsn=2.0.0,
status=sent (delivered via dovecot service)
No changes to this user's account were made during this time period.
I'm flummoxed.
Anythoughts as to what might be going on here, and/or how to debug this further?
Thanks in advance...
Ian
/usr/sbin/dovecotd --version
1.1.20apple0.5
sh-3.2# /usr/sbin/dovecotd -n
# 1.1.20apple0.5: /private/etc/dovecot/dovecot.conf
Warning: fd limit 256 is lower than what Dovecot can use under full load (more
than 456). Either grow the limit or change login_max_processes_count and
max_mail_processes settings
# OS: Darwin 10.8.0 x86_64 hfs
base_dir: /var/run/dovecot
syslog_facility: local6
protocols: managesieve imaps imap
listen(default): *
listen(imap): *
listen(managesieve): *:2000
ssl_ca_file:
/etc/certificates/mail.eem.ca.98CEBC1921A5C908068A7CB64F0364C1D5DEF795.chain.pem
ssl_cert_file:
/etc/certificates/mail.eem.ca.98CEBC1921A5C908068A7CB64F0364C1D5DEF795.cert.pem
ssl_key_file:
/etc/certificates/mail.eem.ca.98CEBC1921A5C908068A7CB64F0364C1D5DEF795.key.pem
ssl_cipher_list: ALL:!LOW:!SSLv2:!aNULL:!ADH:!eNULL
disable_plaintext_auth: no
login_dir: /var/run/dovecot/login
login_executable(default): /usr/libexec/dovecot/imap-login
login_executable(imap): /usr/libexec/dovecot/imap-login
login_executable(managesieve): /usr/libexec/dovecot/managesieve-login
login_user: _dovecot
login_process_per_connection: no
max_mail_processes: 200
mail_max_userip_connections(default): 20
mail_max_userip_connections(imap): 20
mail_max_userip_connections(managesieve): 10
verbose_proctitle: yes
first_valid_uid: 6
first_valid_gid: 6
mail_access_groups: mail
mail_location: maildir:/var/spool/imap/dovecot/mail/%u
mail_executable(default): /usr/libexec/dovecot/imap
mail_executable(imap): /usr/libexec/dovecot/imap
mail_executable(managesieve): /usr/libexec/dovecot/managesieve
mail_process_sharing(default): full
mail_process_sharing(imap): full
mail_process_sharing(managesieve): none
mail_max_connections(default): 5
mail_max_connections(imap): 5
mail_max_connections(managesieve): 20
mail_plugins(default): quota imap_quota
mail_plugins(imap): quota imap_quota
mail_plugins(managesieve):
mail_plugin_dir(default): /usr/lib/dovecot/imap
mail_plugin_dir(imap): /usr/lib/dovecot/imap
mail_plugin_dir(managesieve): /usr/lib/dovecot/managesieve
sieve_storage(default):
sieve_storage(imap):
sieve_storage(managesieve): /var/spool/imap/dovecot/sieve-scripts/%u
sieve(default):
sieve(imap):
sieve(managesieve): /var/spool/imap/dovecot/sieve-scripts/%u/dovecot.sieve
lda:
postmaster_address: postmaster at example.com
hostname: mail.eem.ca
mail_plugins: push_notify cmusieve quota
quota_full_tempfail: yes
sendmail_path: /usr/sbin/sendmail
auth_socket_path: /var/run/dovecot/auth-master
log_path: /var/log/mailaccess.log
info_log_path: /var/log/mailaccess.log
auth default:
mechanisms: plain login gssapi cram-md5
verbose: yes
passdb:
driver: od
userdb:
driver: od
args: partition=/etc/dovecot/partition_map.conf enforce_quotas=no
socket:
type: listen
master:
path: /var/run/dovecot/auth-master
mode: 384
user: _dovecot
group: mail
plugin:
quota_warning: storage=100%% /usr/libexec/dovecot/quota-exceeded.sh
quota: maildir:User quota
sieve: /var/spool/imap/dovecot/sieve-scripts/%u/dovecot.sieve