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Posted to server-user@james.apache.org by Jamie Nettles <ja...@infograph.com> on 2001/04/20 22:56:51 UTC

RFC1939 Violation? Multiple POP3 Logins at the Same Time

I'm trying to understand how James works when accessed via POP3.  RFC1939
says that "Once the POP3 server has determined through the use of any
authentication command that the client should be given access to the
appropriate maildrop, the POP3 server then acquires an exclusive-access lock
on the maildrop. . . . If the maildrop cannot be opened for some reason (for
example, a lock can not be acquired, . . . ), the POP3 server responds with
a negative status indicator."

I read this to say that I should only be able to authenticate an account to
James via POP3 with one session at a time.  But I seem to have no problem
using two telnet sessions to authenticate to the same account at the same
time, list the same messages, return the same messages, delete the same
messages.  It seems like the second attempt to access (before the first
issues the quit command) should fail.  Am I reading the RFC right?

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RE: RFC1939 Violation? Multiple POP3 Logins at the Same Time

Posted by Danny Angus <da...@thought.co.uk>.
yes you are, if what you say is true, then that is a bug.

> -----Original Message-----
> From: Jamie Nettles [mailto:jamien@infograph.com]
> Sent: Friday, April 20, 2001 9:57 PM
> To: james-user@jakarta.apache.org
> Subject: RFC1939 Violation? Multiple POP3 Logins at the Same Time
> 
> 
> I'm trying to understand how James works when accessed via POP3.  RFC1939
> says that "Once the POP3 server has determined through the use of any
> authentication command that the client should be given access to the
> appropriate maildrop, the POP3 server then acquires an 
> exclusive-access lock
> on the maildrop. . . . If the maildrop cannot be opened for some 
> reason (for
> example, a lock can not be acquired, . . . ), the POP3 server 
> responds with
> a negative status indicator."
> 
> I read this to say that I should only be able to authenticate an 
> account to
> James via POP3 with one session at a time.  But I seem to have no problem
> using two telnet sessions to authenticate to the same account at the same
> time, list the same messages, return the same messages, delete the same
> messages.  It seems like the second attempt to access (before the first
> issues the quit command) should fail.  Am I reading the RFC right?
> 
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> To unsubscribe, e-mail: james-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: james-user-help@jakarta.apache.org
> 

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