I am getting random disconnects from my imap session, dificulties to revconnect, very sluggish behaviour when changing between mail folders also frequent and rapidly repititive messages on te client "mailserver x.x.x.x is not a imap4 server"

I am running dovecot 1.0.rc2 from ports on OpenBSD 4.0 on a PIII, 500MHz 512MB

My set up is very small - a webserver with a single imap account on it for myself and my wife and a pop3 account for a printserver. The clients are both Thunderbird on Linux (Ubuntu7.04 and Ubuntu 6.06

I have overall maybe 6000 mails distributed over all folders.

The maillog file looks like this:

Aug 31 20:51:44 apache dovecot: imap-login: Login: user=<my-login>, method=plain, rip=y.y.y.y, lip=x.x.x.x, TLS Aug 31 20:51:57 apache dovecot: pipe() failed: Too many open files Aug 31 20:52:22 apache dovecot: imap-login: Disconnected: Inactivity: rip=y.y.y.y, lip=x.x.x.x, TLS Aug 31 20:52:57 apache dovecot: pipe() failed: Too many open files Aug 31 20:52:57 apache dovecot: imap-login: Disconnected: Inactivity: rip=y.y.y.y, lip=x.x.x.x, TLS Aug 31 20:53:33 apache last message repeated 3 times Aug 31 20:53:57 apache dovecot: pipe() failed: Too many open files Aug 31 20:54:57 apache dovecot: pipe() failed: Too many open files Aug 31 20:55:03 apache dovecot: IMAP(my-login): Disconnected: Logged out Aug 31 20:55:52 apache dovecot: imap-login: Disconnected: Inactivity: rip=y.y.y.z, lip=x.x.x.x, TLS Aug 31 20:55:57 apache dovecot: pipe() failed: Too many open files Aug 31 20:56:15 apache dovecot: imap-login: Disconnected: Inactivity: rip=y.y.y.y, lip=x.x.x.x, TLS Aug 31 20:56:30 apache last message repeated 3 times Aug 31 20:56:57 apache dovecot: pipe() failed: Too many open files Aug 31 20:56:57 apache dovecot: imap-login: Disconnected: Inactivity: rip=y.y.y.y, lip=x.x.x.x, TLS Aug 31 20:57:57 apache dovecot: pipe() failed: Too many open files Aug 31 20:58:57 apache dovecot: pipe() failed: Too many open files Aug 31 21:00:57 apache last message repeated 2 times Aug 31 21:03:57 apache last message repeated 3 times

My dovecot -n looks like this:

# /etc/dovecot.conf base_dir: /var/dovecot/ protocols: pop3 pop3s imap imaps ssl_cert_file: /etc/ssl/dovecotcert.pem disable_plaintext_auth: no login_dir: /var/dovecot/login login_executable(default): /usr/local/libexec/dovecot/imap-login login_executable(imap): /usr/local/libexec/dovecot/imap-login login_executable(pop3): /usr/local/libexec/dovecot/pop3-login login_user: _dovecot default_mail_env: maildir:%h/Maildir/ mbox_write_locks: fcntl mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/libexec/dovecot/pop3 mail_plugin_dir(default): /usr/local/lib/dovecot/imap mail_plugin_dir(imap): /usr/local/lib/dovecot/imap mail_plugin_dir(pop3): /usr/local/lib/dovecot/pop3 imap_client_workarounds(default): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(imap): delay-newmail outlook-idle netscape-eoh tb-extra-mailbox-sep imap_client_workarounds(pop3): outlook-idle pop3_uidl_format(default): pop3_uidl_format(imap): pop3_uidl_format(pop3): %08Xu%08Xv pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh auth default: passdb: driver: passwd userdb: driver: passwd

What can I do?

Thanks a loy!