Hello Between my RedHat EL4.0 frontend and backend server i've strange connection problems. I use Outlook and Squirrelmail as mail clients, but so far as I can see, occurs the connection problem between frontend proxyd and backend imapd. Cyrus Imapd V 2.2.12 Patchlevel 8.1 I've created mailbox directorys under /var/lib/imap/log and found following lines in the logs for the same task: (Just clicked on each folder) Backend (one interface to private network: >1189688791>* STATUS Drafts (UNSEEN 0)^M zn34 OK Completed^M <1189688791<py86 Status {11+}^M Junk E-mail (UNSEEN)^M >1189688791>* STATUS "Junk E-mail" (UNSEEN 0)^M py86 OK Completed^M <1189688791<532b Status {10+}^M Sent Items (UNSEEN)^M >1189688791>* STATUS "Sent Items" (UNSEEN 0)^M 532b OK Completed^M >1189688791>* BYE Connection reset by peer Frontend (two interfaces, one connected to internet (public)): >1189688862>* STATUS Drafts (UNSEEN 0)^M zn34 OK Completed^M <1189688862<py86 STATUS "Junk E-mail" (UNSEEN)^M >1189688862>* STATUS "Junk E-mail" (UNSEEN 0)^M py86 OK Completed^M <1189688862<532b STATUS "Sent Items" (UNSEEN)^M >1189688862>* STATUS "Sent Items" (UNSEEN 0)^M 532b OK Completed^M <1189688862<kf54 SELECT "INBOX"^M >1189688862>* BYE Fatal error: Lost connection to selected backend^M --- Sometimes I can see this error on the frontend: <1189688844<6ewd LIST "" "%/%"^M >1189688844>6ewd OK Completed^M <1189688844<c6ag IDLE^M >1189688844>+ go ahead^M <1189688845<DONE^M >1189688845>c6ag OK Completed^M <1189688845<gr54 SELECT "INBOX"^M >1189688845>gr54 NO Server(s) unavailable to complete operation^M <1189688845<g893 IDLE^M >1189688845>+ go ahead^M --- And sometimes everything works fine for a couple of minute. Between Frontend and Backend is a 4mb connection, distance 140km. Any suggestion where i can look for problems? Anymore information required? Kind Regards Reinhard Proessler ---- 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