Bug#799724: cyrus-replication broken / wrong connection

[Michael Plate]

Package: cyrus-replication
Version: 2.4.17+caldav~beta10-18
Severity: grave
Justification: renders package unusable



-- System Information:
Debian Release: 8.0
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages cyrus-replication depends on:
ii  cyrus-common  2.4.17+caldav~beta10-18
ii  cyrus-imapd   2.4.17+caldav~beta10-18
ii  dpkg          1.17.25
ii  libc6         2.19-18
ii  libcomerr2    1.42.12-1.1
ii  libdb5.3      5.3.28-9
ii  libical1a     1.0-1.3
ii  libkrb5-3     1.12.1+dfsg-19
ii  libsasl2-2    2.1.26.dfsg1-13
ii  libsqlite3-0  3.8.7.1-1+deb8u1
ii  libssl1.0.0   1.0.1k-3
ii  libwrap0      7.6.q-25
ii  zlib1g        1:1.2.8.dfsg-2+b1

cyrus-replication recommends no packages.

cyrus-replication suggests no packages.

-- no debconf information

I am trying to sync (replicate) IMAP-Storage between an Gentoo and a
Debian 8 system.
Master is a Gentoo cyrus imap 2.4.17, Debian is the replica aka slave system.
syncserver in Debian 8 is configured in /etc/cyrus.conf as

syncserver      cmd="/usr/lib/cyrus/bin/sync_server" listen="2005"

and listens. However, connecting via netcat shows the follwing answer

root at debian:~# netcat localhost 2005
* OK [CAPABILITY IMAP4rev1 LITERAL+ ID ENABLE AUTH=DIGEST-MD5 AUTH=NTLM 
AUTH=CRAM-MD5 AUTH=PLAIN AUTH=LOGIN SASL-IR] debian 
Cyrus IMAP v2.4.17-caldav-beta10-Debian-2.4.17+caldav~beta10-18 server ready


This is wrong ! This is the answer of the standard IMAP-Service.
In Debian 7 and on Gentoo the answer is
root at debian:~# netcat localhost 2005
* SASL DIGEST-MD5 CRAM-MD5 NTLM LOGIN
* COMPRESS DELETE
* OK debian Cyrus sync server v2.4.16-Debian-2.4.16-4+deb7u2

wich is expected. I am running the config beetween Debian 7 and Gentoo
for a long time now, and it ever worked.