I think I've found out.
It could be an option in Eudora about 'socket layers'
If it's configured as ' use if available', it sends a CAPA request to the
server, and generates the -ERR
The message says that IMS does not understand the command 'in this state'
Is there another 'state' or config in which CAPA commands are understood ?
This is a mystery to me.
Anyway, if Eudora socket layers option is set as 'never', no -ERR.

Benoit


----- Original Message ----- 
From: "Benoit Sarton" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, October 23, 2003 4:14 PM
Subject: Re: POP3S error with CAPA


| Well.... I dont like red, but I prefer to see it, rather than to hide my
| head into the sand !
| Who knows exactly whats's going on in the server every time the pop3s is
| pinged with this CAPA ?
| Isn't there some kind of repeated process that slows down the server
before
| a timeout occurs and -ERR is sent back ?
| Or  I am becoming paranoiac with mail servers ?
| I'll go into further investigations.
| Benoit
|
| ----- Original Message ----- 
| From: "Anders Ränzlöw" <[EMAIL PROTECTED]>
| To: <[email protected]>
| Sent: Wednesday, October 22, 2003 3:34 PM
| Subject: Re: POP3S error with CAPA
|
|
| | Benito,
| |
| | what you register in you application event log can you configure.
| |
| | /Anders
| |
| | ----- Original Message ----- 
| | From: "Benoit Sarton" <[EMAIL PROTECTED]>
| | To: <[email protected]>
| | Sent: Wednesday, October 22, 2003 3:00 PM
| | Subject: Re: POP3S error with CAPA
| |
| |
| | > OK for logfile growing big,
| | > but what about the application event log recording warnings with event
| | > number 32 every 5 minutes ?
| | > Does the POP3-CAPA also fill your events logs ?
| | > I dont like the color red
| | > Benoit
| | >
| | >
| | > ----- Original Message ----- 
| | > From: "Anders Ränzlöw" <[EMAIL PROTECTED]>
| | > To: <[email protected]>
| | > Sent: Wednesday, October 22, 2003 1:05 PM
| | > Subject: Re: POP3S error with CAPA
| | >
| | >
| | > | Benito,
| | > |
| | > | this extra "CAPA-line" shall not make a significant problem.
| | > | I have customers checking their mail each 5-th second 24 hours
around,
| | > | logfile grow rather big,
| | > | so far this haven't caused me any problem (that I'm aware of...).
| | > | Of course I send a polite mail to these customers, asking them to
| change
| | > | their settings....
| | > |
| | > | /Anders
| | > |
| | > |
| | > | ----- Original Message ----- 
| | > | From: "Benoit Sarton" <[EMAIL PROTECTED]>
| | > | To: <[email protected]>
| | > | Sent: Wednesday, October 22, 2003 8:54 AM
| | > | Subject: Re: POP3S error with CAPA
| | > |
| | > |
| | > | > Your are right, André
| | > | >
| | > | > After the CAPA error line, I have the logon -ERR ( quite normal
| | because
| | > I
| | > | > have KILLED the acount )
| | > | > The problem is that I still get this request every 5 minutes
| | precisely,
| | > | all
| | > | > day and night
| | > | > So my events log contains dozens of red warning, and so does the
| pop3s
| | > | logs
| | > | >
| | > | > It is frightening that there could be something like a denial of
| | service
| | > | > through pop request.
| | > | > What if hundreds of requests with this CAPA pop your server every
| | minute
| | > ?
| | > | > It seems there is nothing like blocking a pop request 'at the
door'
| | > | >
| | > | > Benoit
| | > | >
| | > | > ----- Original Message ----- 
| | > | > From: "Anders Ränzlöw" <[EMAIL PROTECTED]>
| | > | > To: <[email protected]>
| | > | > Sent: Tuesday, October 21, 2003 5:37 PM
| | > | > Subject: Re: POP3S error with CAPA
| | > | >
| | > | >
| | > | > | Benito,
| | > | > |
| | > | > | I think this happends when customers use some mailclients (guess
| | some
| | > | > | versions of Eudora).
| | > | > | It seems to me like the function not is supported by POP3S and
| hence
| | > the
| | > | > | ERR - normally the next line in the pop3log shows that the
| customer
| | > logs
| | > | > on
| | > | > | (pass), if correct accont and password is entered.
| | > | > |
| | > | > | /Anders
| | > | > |
| | > | > |
| | > | > | ----- Original Message ----- 
| | > | > | From: "Benoit Sarton" <[EMAIL PROTECTED]>
| | > | > | To: <[email protected]>
| | > | > | Sent: Tuesday, October 21, 2003 4:07 PM
| | > | > | Subject: POP3S error with CAPA
| | > | > |
| | > | > |
| | > | > | > POP3S started recently to send several red warnings in my
events
| | log
| | > | > with
| | > | > | > message :
| | > | > | >
| | > | > | > win32 api routine "logon failure user not known" failed
| | > | > | > the maping beetween acounts and ID sécurity ID could not take
| | place
| | > | > | >
| | > | > | > ( first line is originally in english, 2nd line I've
translated)
| | > | > | >
| | > | > | > After checking the POP3 logs, I find that a client sends
regular
| | > | request
| | > | > (
| | > | > | > every 5 minutes or so ), wich logs as :
| | > | > | >
| | > | > | > from 213.36.xxx.xxx CAPA [date and time] -ERR unknown or
invalid
| | > | command
| | > | > | in
| | > | > | > this state [CAPA]
| | > | > | >
| | > | > | > I supposed that the acount authentication was the cause of the
| | > | problem,
| | > | > | and
| | > | > | > I have tried to delete, and re-create, and then definitively
| | delete
| | > | this
| | > | > | > user acount, but I still get this error message,
| | > | > | > both in events log and in pop3 logs
| | > | > | >
| | > | > | > I'm now wondering if this CAPA ( a pop3 request to be told the
| pop
| | > | > server
| | > | > | > capabilities, as I understand it  ) can cause an error.
| | > | > | >
| | > | > | > Did anybody have to deal with this [CAPA] pop3 command ?
| | > | > | > Does IMS POP3S handles it correctly ?
| | > | > | >
| | > | > | > Benoit
| | > | > | >
| | > | > | >
| | > | > | >
| | > | > | > This is the discussion list for the IMS Free email server
| | software.
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