POP 3 Authentication problem

Hi all,

Some times when i check my email i get this :

There was a problem logging onto your mail server.
Your Password was rejected.
Account: ‘’, Server: ‘’,
Protocol: POP3, Server Response: ‘-ERR unable to write pipe’,
Port: 110, Secure(SSL): No, Server Error: 0x800CCC90, Error Number: 0x800CCC92

I check the pop3 service :
HOSTNAME=hostname --fqdn
exec /usr/bin/softlimit -m 25600000
/usr/bin/tcpserver -v -R -c 200 0 110
/var/qmail/bin/qmail-popup $HOSTNAME
$PASSPROG /var/qmail/bin/qmail-pop3d Maildir 2>&1

and it seems fine.
Anyone had the same problem?

I haven’t seen that exact problem, if you could try bumping up the softlimit line. You could try doubling it or just tacking on a 0, and seeing if that has any effect on the error.

exec /usr/bin/softlimit -m 25600000
exec /usr/bin/softlimit -m 256000000

then restart the pop3 service.


Hi Paul,

Having the same problem randomly here.

We’ve upped the sof limit and it’s still happening.

Any more ideas?

All services restarted and nothing seems “strange” at our side…

Pop3 Failure

Me after changing this everything works fine.
I also have disabled imap / secure imap and secure pop3…