Joelly Alexander put forth on 5/15/2010 4:22 AM:

the server and the client are on the same layer2 network and there is no hard- or software or anything else installed on the server what prevents traffic between them; i just figured out that it has to do with the nfs portion; while incoming mails have no problems and are delivered correct into the maildir on the nfs, it does not work when the client want to connect to the maildir; when i copy content from nfs-storage to the local harddisk it works;

Read these below, and post back if that doesn't help. Please remember to reply to the list next time, not to individuals. I'm not an NFS guru, and those who are didn't see your reply.

http://wiki.dovecot.org/MailLocation/SharedDisk http://wiki.dovecot.org/NFS

-- Stan

storage are two debian lenny systems with rhcs, nfs-export configured: <nfsexport name="nfs-storage"/> <nfsclient name="nfs_fcamx1" allow_recover="1" path="/storage/fca-mailstore" target="fcamx1" options="rw,no_root_squash,no_all_squash"/> <nfsclient name="nfs_fcamx2" allow_recover="1" path="/storage/fca-mailstore" target="fcamx2" options="rw,no_root_squash,no_all_squash"/>

mountpoint on fcamx-servers: 192.168.100.20:/storage/fca-mailstore on /var/vmail type nfs (rw,rsize=8192,wsize=8192,timeo=14,intr,tcp,addr=192.168.100.20)

dovecot is configured with this parameters: fcamx1:/etc/dovecot# dovecot -n

1.2.11: /etc/dovecot/dovecot.conf

OS: Linux 2.6.32-bpo.4-686 i686 Debian 5.0.4 nfs

log_path: /var/log/dovecot/dovecot-errors.log info_log_path: /var/log/dovecot/dovecot-info.log log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap imaps pop3 pop3s ssl_cert_file: /etc/ssl/certs/dovecot-cert.pem ssl_key_file: /etc/ssl/private/dovecot-key.pem verbose_ssl: yes login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login login_greeting: hey dude, do you have an account? verbose_proctitle: yes first_valid_uid: 150 last_valid_uid: 150 mail_privileged_group: mail mail_location: maildir:/var/vmail/%d/%u mail_debug: yes mmap_disable: yes mail_nfs_storage: yes mail_nfs_index: yes lock_method: fnctl mbox_write_locks: fcntl dotlock mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 imap_client_workarounds(default): outlook-idle delay-newmail imap_client_workarounds(imap): outlook-idle delay-newmail imap_client_workarounds(pop3): pop3_client_workarounds(default): pop3_client_workarounds(imap): pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh lda: postmaster_address: postmaster@mydomain.tld mail_plugins: sieve quota global_script_path: /var/vmail/globalsieverc log_path: /var/log/dovecot/dovecot-deliver.log info_log_path: /var/log/dovecot/dovecot-deliver-info.log auth default: mechanisms: plain login user: nobody verbose: yes debug: yes debug_passwords: yes passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: prefetch userdb: driver: passwd userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: mail master: path: /var/run/dovecot/auth-master mode: 432 user: vmail group: mail plugin: quota: maildir:storage=102400 sieve: ~/.dovecot.sieve sieve_dir: ~/sieve fcamx1:/etc/dovecot#