Andy, According to your suggestion, my IMAP login is working now. I can now connect imap clients through my frontend servers to access mail boxes in the backend node. However, I still _failed_ to deliver mail via Postfix LMTP through Cyrus LMTPProxy running on the frontends to my cyrus-imap backend server: [Log Message in my frontend Server (mail.sb.marshall.edu)] lmtp[22156]: couldn't authenticate to backend server: no mechanism available postfix/qmgr[12870]: 232871D0012: from=<nahant-list-bounces@xxxxxxxxxx>, size=3881, nrcpt=1 (queue active) postfix/lmtp[22309]: 1EB811D0013: to=<xxxx@xxxxxxxxxxxxxxx>, relay=/var/lib/imap/socket/lmtp[/var/lib/imap/socket/lmtp], delay=-940, status=deferred (host /var/lib/imap/socket/lmtp[/var/lib/imap/socket/lmtp] said: 451 4.4.3 Remote server unavailable (in reply to end of DATA command)) [Log Message in my backend Server] mailbox1 lmtp[31162]: accepted connection mailbox1 lmtp[31162]: connection from mail.sb.marshall.edu [10.101.4.251] preauth'd as postman I found there is NO such user named "postman" on my backend server. But Cyrus LMTPd authenticated the frontend LMTPProxyd as this user. Thanks. -Jack -----Original Message----- From: Andrew Morgan [mailto:morgan@xxxxxxxx] Sent: Saturday, April 29, 2006 8:30 PM To: Xue, Chongjie "Jack" Cc: info-cyrus@xxxxxxxxxxxxxxxxxxxx Subject: Re: Cyrus Murder SASL Authentication Problem On Sat, 29 Apr 2006, Xue, Chongjie "Jack" wrote: [snip] > mailbox1 imap[29381]: badlogin: [10.101.4.251] PLAIN [SASL(-13): > authentication failure: user cyrus_murder is not allowed to proxy] [snip] > #---imapd.conf---# > configdirectory: /var/lib/imap > partition-default: /var/spool/imap > admins: admin > sievedir: /var/lib/imap/sieve > sendmail: /usr/sbin/sendmail > hashimapspool: true > sasl_pwcheck_method: saslauthd > sasl_mech_list: plain > tls_cert_file: /usr/share/ssl/certs/cyrus-imapd.pem > tls_key_file: /usr/share/ssl/certs/cyrus-imapd.pem > tls_ca_file: /usr/share/ssl/certs/ca-bundle.crt > altnamespace: false > berkeley_cachesize: 4096 > mupdate_server: imapproxy > mupdate_username: admin > mupdate_authname: admin > mupdate_password: xxxxxxxxx > proxy_servers: cyrus_murder > > I know Cyrus-SASL is causing the problem on the Proxy Level and I need > suggestions on how to setup SASL-Authentication for my murder Frontend > nodes. On your backend server, you need to list cyrus_murder as an admin also. Andy ---- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
