Probleme mit POP3 Server


dragonknight

New Member
Hallo,
hab nach Google Recherche hab ich auf mein Problem keine Antwort gefunden, vielleicht könnt ihr mir ja helfen.
Seit einer Woche ist es meinen Kunden nicht mehr möglich, emails per POP3 abzurufen die größer sind als 2 MB.
Aussage des Kunden: Die Mails können nur noch per Webmail geholt werden.
Ich selbst rufe mail per IMAP ab.
Hier die Config von Courier POP3:
Code:
##VERSION: $Id: pop3d.dist.in,v 1.16 2005/07/05 12:42:51 mrsam Exp $
#
# pop3d created from pop3d.dist by sysconftool
#
# Do not alter lines that begin with ##, they are used when upgrading
# this configuration.
#
#  Copyright 1998 - 2004 Double Precision, Inc.  See COPYING for
#  distribution information.
#
#  Courier POP3 daemon configuration
#
##NAME: PIDFILE:0
#

PIDFILE=/var/run/courier/pop3d.pid

##NAME: MAXDAEMONS:0
#
#  Maximum number of POP3 servers started
#

MAXDAEMONS=40

##NAME: MAXPERIP:4
#
#  Maximum number of connections to accept from the same IP address

MAXPERIP=3

##NAME: POP3AUTH:1
#
# To advertise the SASL capability, per RFC 2449, uncomment the POP3AUTH
# variable:
#
# POP3AUTH="LOGIN"
#
# If you have configured the CRAM-MD5, CRAM-SHA1 or CRAM-SHA256, set POP3AUTH
# to something like this:
#
# POP3AUTH="LOGIN CRAM-MD5 CRAM-SHA1"

POP3AUTH=""

##NAME: POP3AUTH_ORIG:1
#
# For use by webadmin

POP3AUTH_ORIG="PLAIN LOGIN CRAM-MD5 CRAM-SHA1 CRAM-SHA256"

##NAME: POP3AUTH_TLS:1
#
# To also advertise SASL PLAIN if SSL is enabled, uncomment the
# POP3AUTH_TLS environment variable:
#
# POP3AUTH_TLS="LOGIN PLAIN"

POP3AUTH_TLS=""

##NAME: POP3AUTH_TLS_ORIG:0
POP3AUTH_TLS=""

##NAME: POP3AUTH_TLS_ORIG:0
#
# For use by webadmin

POP3AUTH_TLS_ORIG="LOGIN PLAIN"

##NAME: POP3_PROXY:0
#
# Enable proxying.  See README.proxy

POP3_PROXY=0

##NAME: PROXY_HOSTNAME:0
#
# Override value from gethostname() when checking if a proxy connection is
# required.

# PROXY_HOSTNAME=

##NAME: PORT:1
#
# Port to listen on for connections.  The default is port 110.
#
#  Multiple port numbers can be separated by commas.  When multiple port
#  numbers are used it is possibly to select a specific IP address for a
#  given port as "ip.port".  For example, "127.0.0.1.900,192.68.0.1.900"
#  accepts connections on port 900 on IP addresses 127.0.0.1 and 192.68.0.1
#  The ADDRESS setting is a default for ports that do not have a specified
#  IP address.

PORT=110

##NAME: ADDRESS:0
#
# IP address to listen on.  0 means all IP addresses.

ADDRESS=0

##NAME: TCPDOPTS:0
#
# Other couriertcpd(1) options.  The following defaults should be fine.
#

TCPDOPTS="-nodnslookup -noidentlookup"

##NAME: LOGGEROPTS:0
#
# courierlogger(1) options.
#

LOGGEROPTS="-name=pop3d"

##NAME: DEFDOMAIN:0
#
# Optional default domain. If the username does not contain the
# first character of DEFDOMAIN, then it is appended to the username.
# If DEFDOMAIN and DOMAINSEP are both set, then DEFDOMAIN is appended
# only if the username does not contain any character from DOMAINSEP.

#DEFDOMAIN="@example.com"

##NAME: POP3DSTART:0
#
# POP3DSTART is not referenced anywhere in the standard Courier programs
# or scripts.  Rather, this is a convenient flag to be read by your system
# startup script in /etc/rc.d, like this:
#
#  . /etc/courier/pop3d
#  case x$POP3DSTART in
#  x[yY]*)
#        /usr/lib/courier/pop3d.rc start
#        ;;
#  esac
#
# The default setting is going to be NO, until Courier is shipped by default
# with enough platforms so that people get annoyed with having to flip it to
# YES every time.

POP3DSTART=YES

##NAME: MAILDIRPATH:0
#
# MAILDIRPATH - directory name of the maildir directory.
#
MAILDIRPATH=Maildir
Ich blick leider nicht durch.
Seh niergends das ein Timeout oder ähnliches gesetzt ist.
Da ich einen vServer hierfür verwende, noch die User Beancounters:
Code:
Version: 2.5
resource                     held              maxheld              barrier                limit              failcnt
kmemsize                  6430520              6468125             12405423             13645965                    0
lockedpages                     0                    0                   79                   79                    0
privvmpages                 27820                27857               256000               281600                    0
shmpages                      910                  910                25600                25600                    0
dummy                           0                    0  9223372036854775807  9223372036854775807                    0
numproc                        51                   51                  164                  164                    0
physpages                   20625                20625                    0           2147483647                    0
vmguarpages                     0                    0               128000           2147483647                    0
oomguarpages                20625                20625               128000           2147483647                    0
numtcpsock                     15                   15                  164                  164                    0
numflock                        9                    9                  262                  288                    0
numpty                          1                    1                   16                   16                    0
numsiginfo                      0                    1                  512                  512                    0
tcpsndbuf                  185376               185376              1137635              1809379                  122
tcprcvbuf                  141128               145504              1137635              1809379                    2
othersockbuf               200856               200856               568817              1240561                    0
dgramrcvbuf                     0                    0               568817               568817                    0
numothersock                  129                  129                  164                  164                  818
dcachesize                1048863              1057314              2418278              2490826                    0
numfile                      2075                 2087                 6000                 6000                    0
dummy                           0                    0                    0                    0                    0
dummy                           0                    0                    0                    0                    0
dummy                           0                    0                    0                    0                    0
numiptent                      14                   14                   35                   35                    0
Ich weiß leider nicht weiter.
danke
Chris
 
Du könntest probieren das "MAXPERIP"-Limit etwas zu erhöhen, besonders wenn ein Kunde mehrere Konten mit einem Client abfragt ist dieser niedrige Wert sehr störend.
Ansonsten schau mal nach, was so in den mail.*-Logs steht, vielleicht taucht da ja der Hinweis auf.
 
Ich denke ich hab den Schuldigen gefunden:
numothersock 135 135 164 164 902
Ich frag mich nur, wie ich vermeiden kann, das diese Limitierung trifft.
 

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