Dear Friends,
I have tried earlier as suggested you above steps in local.conf and
10-master.conf. But doesn't work out. then i checked with dovecot mailing
list they advised some issue in dovecot toaster that's what i required your
help to resolve it. Please see below details for your reference and help me
to resolve it.
*dovecot.conf*
listen = *
!include toaster.conf
!include_try local.conf
*local.conf*
protocol imap {
imap_client_workarounds = "delay-newmail"
# mail_plugins = $mail_plugins imap_quota
# mail_max_userip_connections = 300
mail_max_userip_connections = 100
default_process_limit = 400
}
# This namespace can be used for people to dump their spam/ham into.
# A cron job can then use them as input to sa-learn.
# See qmailtoaster-plus for a sample script.
#namespace {
# location = maildir:/home/vpopmail/domains/<mydomain>/sa-learn
# prefix = sa-learn.
# separator = .
# type = public
#}
#protocol lda {
# postmaster_address = postmaster@<mydomain>
#}
# NFS single-server or director setup:
#mmap_disable = yes
# dotlock_use_excl = no # only needed with NFSv2, NFSv3+ supports O_EXCL
and it's faster
#mail_fsync = always
Toaster.conf
# Settings for 'stock' qmail-toaster
auth_cache_size = 32M
#auth_mechanisms = plain login digest-md5 cram-md5
auth_mechanisms = plain login digest-md5
auth_username_format = %Lu
first_valid_uid = 89
#first_valid_gid = 89
log_path = /var/log/dovecot.log
login_greeting = Dovecot toaster ready.
#mail_plugins = $mail_plugins quota
plugin/quota = maildir
protocols = imap
ssl_cert = </var/qmail/control/servercert.pem
ssl_key = </var/qmail/control/servercert.pem
# the following will likely be the default at some point
ssl_dh_parameters_length = 2048
namespace {
inbox = yes
location =
# prefix =
prefix = INBOX.
# Use 'prefix = INBOX.' for Courier-IMAP compatible transparent migration.
# This forces all client apps to create subfolders underneath/within
# the inbox instead of adjacent to it. It's not necessary to be that way.
# FWIW, shubes thinks this setting is annoying/rediculous/retarded.
# As a practical example, having no prefix allows mobile users to select
# which folders get synchronized. Otherwise their whole mailbox is
# synchronized, and they have no way to choose which folders they want
sync'd.
separator = .
type = private
}
passdb {
args = cache_key=%u webmail=127.0.0.1
driver = vpopmail
}
#protocol imap {
# imap_client_workarounds = "delay-newmail"
# mail_plugins = $mail_plugins imap_quota
# mail_max_userip_connections = 500
#}
#protocol pop3 {
# pop3_client_workarounds = outlook-no-nuls oe-ns-eoh
# pop3_fast_size_lookups = yes
# pop3_lock_session = yes
# pop3_uidl_format = UID%u-%v
#}
userdb {
args = cache_key=%u quota_template=quota_rule=*:backend=%q
driver = vpopmail
}
plugin {
quota = maildir:ignore=Trash
quota_rule = ?:storage=0
}
*10-master.conf*
#default_process_limit = 300
#default_client_limit = 1000
# Default VSZ (virtual memory size) limit for service processes. This is
mainly
# intended to catch and kill processes that leak memory before they eat up
# everything.
#default_vsz_limit = 256M
# Login user is internally used by login processes. This is the most
untrusted
# user in Dovecot system. It shouldn't have access to anything at all.
#default_login_user = dovenull
# Internal user is used by unprivileged processes. It should be separate
from
# login user, so that login processes can't disturb other processes.
#default_internal_user = dovecot
service imap-login {
inet_listener imap {
# process_limit = 15
# process_limit = 512
# client_limit = 10740
# client_limit = $default_client_limit
client_limit = 1000
process_limit = 400
#port = 143
}
inet_listener imaps {
#port = 993
#ssl = yes
}
# Number of connections to handle before starting a new process. Typically
# the only useful values are 0 (unlimited) or 1. 1 is more secure, but 0
# is faster. <doc/wiki/LoginProcess.txt>
#service_count = 1
service_count = 0
# Number of processes to always keep waiting for more connections.
#process_min_avail = 0
process_min_avail = 30
# If you set service_count=0, you probably need to grow this.
#vsz_limit = $default_vsz_limit
}
service pop3-login {
inet_listener pop3 {
#port = 110
}
inet_listener pop3s {
#port = 995
#ssl = yes
}
}
service lmtp {
unix_listener lmtp {
#mode = 0666
}
# Create inet listener only if you can't use the above UNIX socket
#inet_listener lmtp {
# Avoid making LMTP visible for the entire internet
#address =
#port =
#}
}
service imap {
# Most of the memory goes to mmap()ing files. You may need to increase
this
# limit if you have huge mailboxes.
#vsz_limit = $default_vsz_limit
# Max. number of IMAP processes (connections)
process_limit = 5120
#process_limit = 300
}
service pop3 {
# Max. number of POP3 processes (connections)
#process_limit = 1024
}
service auth {
# auth_socket_path points to this userdb socket by default. It's typically
# used by dovecot-lda, doveadm, possibly imap process, etc. Users that
have
# full permissions to this socket are able to get a list of all usernames
and
# get the results of everyone's userdb lookups.
#
# The default 0666 mode allows anyone to connect to the socket, but the
# userdb lookups will succeed only if the userdb returns an "uid" field
that
# matches the caller process's UID. Also if caller's uid or gid matches
the
# socket's uid or gid the lookup succeeds. Anything else causes a failure.
#
# To give the caller full permissions to lookup all users, set the mode to
# something else than 0666 and Dovecot lets the kernel enforce the
# permissions (e.g. 0777 allows everyone full permissions).
unix_listener auth-userdb {
#mode = 0666
#user =
#group =
}
# Postfix smtp-auth
#unix_listener /var/spool/postfix/private/auth {
# mode = 0666
#}
# Auth process is run as this user.
#user = $default_internal_user
}
service auth-worker {
# Auth worker process is run as root by default, so that it can access
# /etc/shadow. If this isn't necessary, the user should be changed to
# $default_internal_user.
#user = root
}
service dict {
# If dict proxy is used, mail processes should have access to its socket.
# For example: mode=0660, group=vmail and global mail_access_groups=vmail
unix_listener dict {
#mode = 0600
#user =
#group =
}
}
On Wed, Jul 22, 2015 at 8:38 PM, Edwin C <[email protected]> wrote:
> That happened to me.
>
> You need to change the configuration of dovecot to break the 100 process
> limit.
> On Jul 22, 2015 8:22 PM, Eric Broch <[email protected]> wrote:
>
> Look here http://wiki2.dovecot.org/LoginProcess
>
> On 7/22/2015 3:56 AM, Chandran Manikandan wrote:
>
> Dear Friends,
> I have faced below issues since two weeks to till now. Could anyone help
> me to rectify this issue.
>
> Below message retrieve from logs and getting disconnection from Outlook
> and other email clients.
>
> Error Message
>
> master: Warning: service(imap-login): process_limit (100) reached,
> client connections are being dropped
>
> My local.conf from dovecot folder
>
> protocol imap {
> imap_client_workarounds = "delay-newmail"
> mail_max_userip_connections = 20
> default_process_limit = 300
> }
>
> 10-master.conf
>
> default_process_limit = 300
> default_client_limit = 1000
>
> service imap-login {
> inet_listener imap {
> # process_limit = 15
> # client_limit = 300
> #port = 143
> }
> protocol imap {"process_limit = 300"}
>
> Please check above config. I have modified in dovecot folder but doesn't
> reflect the server. Is there anything in toaster issue. could any one help
> me to solve it.
>
> My server toaster is dovecot-2.2.7-0.qt.el6.i686
> Server is Centos 6.6
>
>
>
> --
> *Thanks,*
> *Manikandan.C*
> *System Administrator*
>
>
>
--
*Thanks,*
*Manikandan.C*
*System Administrator*
