At 4:05 PM -0300 5/8/01, Rodrigo Luiz Anami wrote:
> We were using qpopper 3.1.2 and we didn�t have any type of
> problem with it. After we upgraded to 4.0.1 and 4.0.2 therefore,
> we receive a lot of messages "ERR POP EOF or I/O Error" on syslog
> and our pop clients can�t download their e-mails. I think there
> is a bug here.
>
>
> []�s
"ERR POP EOF or I/O Error" is different than "I/O error flushing
output to client".
"I/O error flushing output to client" usually means that Qpopper
got an error shutting down the connection. This is usually because
the client didn't wait for the response to QUIT.
"ERR POP EOF or I/O Error" means the client disconnected without
even sending QUIT.
You can try adjusting the chunky-writes option. I've seen this
cause problems when the network path between Qpopper and the client
is congested. The larger packets get dropped, and the client
(almost always Outlook or OE) has a too-short timeout and
disconnects.
If possible, try increasing the client timeout. Also check for
excessive packet loss during the time of the error.
