Hello, I'm new in murder setup. I got it almost to work but I have question, is there way to use lmtp as preauthed so that no extra auth required? Currently, mail-relay host connects to frontend server successfully (frontend server running lmtpproxyd with -a option and backend server running lmtpd with -a option), but in log appears line: Mar 7 13:33:10 front02 lmtp[79887]: couldn't authenticate to backend server: no mechanism available Mar 7 13:33:10 front02 lmtp[79887]: USAGE vaike401 user: 0.014101 sys: 0.000000 And when I do tcpdump between backend and frontend server, there seems no auth like actions or something else: B: 220 back07 Cyrus LMTP Murder v2.4.13 server ready F: LHLO lmtpproxyd B: 250-mh7 B: 250-8BITMIME B: 250-ENHANCEDSTATUSCODES B: 250-PIPELINING B: 250-SIZE B: 250-AUTH EXTERNAL B: 250 IGNOREQUOTA F: B: 421 4.4.1 bye end of file reached In last frontend server seems send nothing to backend server and backend server disconnects after that. This "nothing" looks like: 13:32:29.375260 IP 10.4.0.43.51977 > 10.4.0.118.2003: Flags [F.], seq 18, ack 175, win 1026, length 0 0x0000: 0050 56bf 0072 0050 56bf 00b3 0800 4500 .PV..r.PV.....E. 0x0010: 0028 c2a8 4000 4006 637f 0a04 002b 0a04 .(..@.@.c....+.. 0x0020: 0076 cb09 07d3 24ef aa55 2c23 0755 5011 .v....$..U,#.UP. 0x0030: 0402 14c3 0000 ...... Best Regards, Eero ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/