Hi everyone,

some days ago I had trouble with my NFS-Server (high delays) which caused dovecot lmtp to deliver the same message several times (up to 10x).

I recognized some old/unused .nfsXXXX files in the maildirs which seemed to be index files. I deleted them and everything was fine again.

However, there are still 2-3 mailboxen where mails (old and new ones) are delivered multiple times.

All duplicates have no "received from" headers. Seperate lmtp log shows only one delivery.

Any hint or advice what might be wrong?

Regards Patrick

# 2.2.2: /usr/local/etc/dovecot/dovecot.conf # OS: Linux 3.2.0-4-amd64 x86_64 Debian 7.1 auth_mechanisms = plain login disable_plaintext_auth = no dotlock_use_excl = no hostname = mb02.wk-serv.net listen = 172.17.1.2 log_path = /var/log/dovecot.log login_trusted_networks = 172.17.1.3 172.17.1.4 mail_fsync = always mail_gid = vmail mail_home = /var/mail/%d/%n mail_location = maildir:~/Maildir mail_plugins = quota mail_uid = vmail managesieve_notify_capability = mailto managesieve_sieve_capability = fileinto reject envelope encoded-character vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy include variables body enotify environment mailbox date ihave mmap_disable = yes namespace inbox { inbox = yes location = mailbox Drafts { auto = subscribe special_use = \Drafts } mailbox Junk { special_use = \Junk } mailbox Sent { auto = subscribe special_use = \Sent } mailbox Spamverdacht { auto = subscribe } mailbox Trash { auto = subscribe special_use = \Trash } prefix = INBOX. separator = . type = private } passdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } plugin { quota = dict:User quota::file:%h/Maildir/dovecot-quota quota_rule2 = INBOX.Trash:ignore quota_warning = storage=90%% quota-warning 90 %u quota_warning2 = storage=75%% quota-warning 75 %u sieve = ~/.dovecot.sieve sieve_after = /usr/local/etc/dovecot/sieve/sieve_after.sieve sieve_default = /usr/local/etc/dovecot/sieve/default.sieve sieve_dir = ~/sieve } protocols = imap pop3 lmtp sieve service auth { unix_listener auth-userdb { group = vmail mode = 0666 user = vmail } } service lmtp { executable = lmtp -L inet_listener lmtp { address = 172.17.1.2 port = 24 } } service managesieve-login { inet_listener sieve { port = 4190 } } service quota-warning { executable = script /usr/local/etc/dovecot/quota_warning.sh unix_listener quota-warning { user = vmail } user = root } userdb { args = /usr/local/etc/dovecot/dovecot-sql.conf.ext driver = sql } protocol lmtp { info_log_path = /var/log/dovecot-lmtp.log mail_plugins = quota sieve } protocol imap { mail_max_userip_connections = 30 mail_plugins = quota imap_quota }