Hi all, i hope that here i will find solution for my problem. We get these messages in a mail server: in kernel.log Sep 12 11:28:44 hermod kernel: lmtpd[3555]: segfault at 0000555554000000 rip 00002aaaacb11af9 rsp 00007fffd7127c50 error 4 Sep 12 11:49:35 hermod kernel: pop3d[9756]: segfault at 00000000fffffff7 rip 00002aaaacb11adb rsp 00007fff8268bbb0 error 4 Sep 12 12:04:43 hermod kernel: pop3d[10667]: segfault at 00000000fffffff7 rip 00002aaaacb11adb rsp 00007fff4738cab0 error 4 and these in maillog Sep 12 12:24:31 hermod postfix/lmtp[12112]: warning: to prevent loss of mail, turn off command pipelining for /var/lib/imap/socket/lmtp with the lmtp_discard_lhlo_keyword_address_maps parameter Sep 12 12:24:31 hermod postfix/lmtp[12108]: warning: to prevent loss of mail, turn off command pipelining for /var/lib/imap/socket/lmtp with the lmtp_discard_lhlo_keyword_address_maps parameter Sep 12 12:24:31 hermod postfix/lmtp[12112]: warning: non-LMTP response from hermod.iguanait.com[/var/lib/imap/socket/lmtp]: 2aaaab391000-2aaaab392000 rw-p 2aaaab391000 00:00 0 Sep 12 12:24:31 hermod postfix/lmtp[12108]: warning: non-LMTP response from hermod.iguanait.com[/var/lib/imap/socket/lmtp]: 2aaaaaad2000-2aaaaaad3000 rw-p 2aaaaaad2000 00:00 0 How can i understand what is the real problem and how to solve this? We have installed on fedora 6 - cyrus-imapd-2.3.9-6.fc6, postfix-2.3.3-2 These are the lines for transport in /etc/postfix/main.cf: default_transport = smtp mailbox_transport = lmtp:unix:/var/lib/imap/socket/lmtp Thanks in advanced! ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html