hello list, I am attempting to sync two imap servers using the imapsync perl script. It seems handy and easy. Here's what happens when I try to do this: # # Postfix master process configuration file. For details on the format # of the file, see the master(5) manual page (command: "man 5 master"). # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject #smtps inet n - n - - smtpd virtual unix - n n - - virtual lmtp unix - - n - - lmtp anvil unix - - n - 1 anvil scache unix - - n - 1 scache amavis unix - - - - 2 smtp -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes [root at mail3 skins]# imapsync --syncinternaldates --host1 mail.example1.com --user1 bluethundr --password1 secret --host2 roundcube.example2.com --user2 bluethundr --password2 secret [root at mail3 skins]# imapsync --syncinternaldates --host1 mail.example1.com --user1 bluethundr --password1 secret --host2 roundcube.example2.com --user2 bluethundr --password2 secret $RCSfile: imapsync,v $ $Revision: 1.456 $ $Date: 2011/08/24 04:21:30 $ Here is a [linux] system (Linux mail3.example1.com 3.0.4-x86_64-linode21 #1 SMP Thu Sep 1 21:28:01 EDT 2011 x86_64) With perl 5.8.8 Mail::IMAPClient 3.28 Command line used: /usr/bin/imapsync --syncinternaldates --host1 mail.example1.com --user1 bluethundr --password1 MASKED --host2 roundcube.example2.com --user2 bluethundr --password2 MASKED Temp directory is /tmp PID file is /tmp/imapsync.pid Modules version list: Mail::IMAPClient 3.28 IO::Socket 1.29 IO::Socket::INET 1.29 IO::Socket::SSL 1.01 Digest::MD5 2.36 Digest::HMAC_MD5 1.01 Term::ReadKey 2.30 Authen::NTLM 1.09 Info: turned ON syncinternaldates, will set the internal dates (arrival dates) on host2 same as host1. Info: will try to use LOGIN authentication on host1 Info: will try to use LOGIN authentication on host2 Host1: imap server [mail.example1.com] port [143] user [bluethundr] Host2: imap server [roundcube.example2.com] port [143] user [bluethundr] Banner: * OK mail.example1.com Zimbra IMAP4rev1 server ready Info: host mail.example1.com says it has NO CAPABILITY for AUTHENTICATE LOGIN Info: success login on [mail.example1.com] with user [bluethundr] auth [LOGIN] Banner: * OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE ACL ACL2=UNION STARTTLS] Courier-IMAP ready. Copyright 1998-2011 Double Precision, Inc. See COPYING for distribution information. Info: host roundcube.example2.com says it has NO CAPABILITY for AUTHENTICATE LOGIN Failure: error login [roundcube.example2.com] with user [bluethundr] auth [LOGIN]: 2 NO Login failed. Failure: error login [roundcube.example2.com] with user [bluethundr] auth [LOGIN]: 2 NO Login failed. [root at mail3 skins]# I can log into both imap servers without any problem. Server1 is a zimbra server and Server2 is a plain vanilla postfix setup with courier imap. I believe the problem is with courier authlib and the advertised capabilities of that server. Info: host mail.example1.com says it has NO CAPABILITY for AUTHENTICATE LOGIN This is my authmodulelist on server2. authmodulelist="authuserdb authpam authpgsql authldap authmysql authcustom authpipe" This is all I see in the postfix logs on the second server when the authentication failure happens: Dec 3 22:54:59 li135-81 imapd: Connection, ip=[::ffff:69.164.220.81] Dec 3 22:55:01 li135-81 imapd: LOGIN FAILED, user=bluethundr, ip=[::ffff:69.164.220.81] Dec 3 22:55:06 li135-81 imapd: Disconnected, ip=[::ffff:69.164.220.81], time=7 Dec 3 22:55:15 li135-81 imapd: Connection, ip=[::ffff:127.0.0.1] Dec 3 22:55:15 li135-81 imapd: LOGIN, user=bluethundr at exmaple2.com, ip=[::ffff:127.0.0.1], port=[57141], protocol=IMAP Dec 3 22:55:15 li135-81 imapd: LOGOUT, user=bluethundr at example2.com, ip=[::ffff:127.0.0.1], headers=0, body=0, rcvd=94, sent=460, time=0 I'm thinking I need to find a way for server2 to authenticate via plaintext for this to happen. I'd appreciate any advice you might have. thanks in advance tim