evolution-exchange-storage SIGABRT

Binary package hint: evolution-exchange

As evolution crashes here and then on 8.04 I installed the debug versions and let evolution-exchange-storage run under gdb.
Here is gdb's backtrace:
#0 0xb7fc8410 in __kernel_vsyscall ()
#1 0xb6de0085 in raise () from /lib/tls/i686/cmov/libc.so.6
#2 0xb6de1a01 in abort () from /lib/tls/i686/cmov/libc.so.6
#3 0xb6dd910e in __assert_fail () from /lib/tls/i686/cmov/libc.so.6
#4 0xb7e46b39 in ber_flush2 () from /usr/lib/liblber-2.4.so.2
#5 0xb7e6f959 in ldap_int_flush_request () from /usr/lib/libldap_r-2.4.so.2
#6 0xb7e6fd8c in ldap_send_server_request () from /usr/lib/libldap_r-2.4.so.2
#7 0xb7e6ff54 in ldap_send_initial_request () from /usr/lib/libldap_r-2.4.so.2
#8 0xb7e85012 in ldap_ntlm_bind () from /usr/lib/libldap_r-2.4.so.2
#9 0xb70cf403 in connect_ldap (gc=0x80fc978, op=0x0, ldap=0xb622cb38)
    at e2k-global-catalog.c:243
#10 0xb70cfa25 in gc_search (gc=0x80fc978, op=0x0, base=0xb70e366d "",
    scope=2,
    filter=0xb6271738 "(<email address hidden>)",
    attrs=0xb622ff00, msg=0xbfe9ad38) at e2k-global-catalog.c:396
#11 0xb70d07da in e2k_global_catalog_lookup (gc=0x80fc978, op=0x0,
    type=E2K_GLOBAL_CATALOG_LOOKUP_BY_LEGACY_EXCHANGE_DN,
    key=0xb62cb480 "<email address hidden>",
    flags=E2K_GLOBAL_CATALOG_LOOKUP_MAILBOX, entry_p=0xbfe9adcc)
    at e2k-global-catalog.c:798
#12 0x08061883 in get_message (stub=0x80ae910,
    folder_name=0xb625bf80 "personal/Inbox", uid=0xb625fe20 "000000a2c56e")
    at mail-stub-exchange.c:2344
---Type <return> to continue, or q <return> to quit---
#13 0x08064743 in connection_handler (source=0x80f09e8, condition=G_IO_IN,
    data=0x80ae910) at mail-stub.c:271
#14 0xb6f87c5d in ?? () from /usr/lib/libglib-2.0.so.0
#15 0x080f09e8 in ?? ()
#16 0x00000001 in ?? ()
#17 0x080ae910 in ?? ()
#18 0xb6fcc248 in ?? () from /usr/lib/libglib-2.0.so.0
#19 0xbfe9aecc in ?? ()
#20 0x08100f00 in ?? ()
#21 0xbfe9aee8 in ?? ()
#22 0xb6f53bf8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
Backtrace stopped: frame did not save the PC
(gdb)