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Date:  Mon, 7 Aug 2006 17:48:29 +0100
From:  "Connexions Web Solutions" <Administration (at mark) cnx-solutions.com>
Subject:  [coba-e:06237] Re: POP3 BOX STOPS RESPONDING
To:  coba-e (at mark) bluequartz.org
Message-Id:  <44D77CED.9345.182074D@localhost>
In-Reply-To:  <348667207.20060807154841 (at mark) gmx.net>
References:  <44D73262.29118.5CADF3@localhost>
X-Mail-Count: 06237

Hi Chris,

My POP3 parameters are

# qpopper config file for xinetd
service pop-3
{
        flags       = REUSE NAMEINARGS
        socket_type = stream
        protocol    = tcp
        wait        = no
        user        = root
        server      = /usr/sbin/in.qpopper
        server_args = in.qpopper -s
	disable     = yes
	instances = 80
}

As you can see, uits set to instances=80. I can change that to 100, 
and do I just enter a new line 

cps = 100 10


And how/where do I do this

"The in.qpopper command line should have -R as option"



And telnet as you suggested comes back with

+OK AVG POP3 Proxy Server 7.1.371/7.1.394 [268.10.7/410]

Not sure what that means as we do not have a proxy server ?

Rgds.

Keith Reynolds







Date sent:      	Mon, 7 Aug 2006 15:48:41 +0200
From:           	Chris Hemsing <C.Hemsing (at mark) gmx.net>
Send reply to:  	coba-e (at mark) bluequartz.org
Subject:        	[coba-e:06232] Re: POP3 BOX STOPS RESPONDING
To:             	Connexions Web Solutions <coba-e (at mark) bluequartz.org>

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Hello whoever,

there may be several reasons.
Have a look at
/etc/xinetd.d/pop3
a) Is the
cps
parameter set?
Set it to say
cps = 100 10
b) Is the
instances
parameter set?
In case it is, set it to
instances = 100
c) The in.qpopper command line should have -R as option

In case the system gets stuck: can you track a pop3 query? Does the pop3
protocol start and gets stuck at the authentication? Or ist the no
response to pop3 request at all? Try

telnet host_in_question 110

is there any answer?

Regards,
Chris


Monday, August 7, 2006, 1:30:26 PM, you wrote:

CWS> Hi,

CWS> I have a new very fast box with CentOS latest & BQ. It has about two 
CWS> hundred mail.domain.com on it, with an average of five users per 
CWS> .com.

CWS> It intermittently locks up on users email, when they get 
CWS> authentication failure, and cannot login using webmail. Yet oddly the 
CWS> admin POP3 mailbox never stops responding, nor webmail for the 
CWS> admin box. Its not a DNS issue because I am using IP to overcome 
CWS> that.

CWS> It appears to be in some way linked to mail checking programmes 
CWS> like magic mail monitor, which when started may send forty or fifty 
CWS> parallel requests to check mailboxes, all on the same IP.

CWS> Does anyone have a similar problem ?

CWS> What I find odd is that it only effects users mail boxes, never the 
CWS> server admin mail box, even though that is being checked with the 
CWS> same mail monitor programme.

CWS> Is there a maximum number of connections on sendmail that I can 
CWS> increase ?

CWS> Any help appreciated.

CWS> Rgds.