Incorrect email addresses causes the "Synchronize users-to-contacts- to error out.

Here is the error I got, though all the users were synchronised.

error

crm_core_error Object
(
[_errors] => Array
(
[0] => Array
(
[code] => 8000
[params] => Array
(
[0] =>
)

[package] => CRM
[level] => Fatal
[time] => 1130779245.8049
[context] => Array
(
[file] => /var/ww/modules/civicrm/api/utils.php
[line] => 46
[function] => _crm_error
)

[message] => Email not valid abccc00@rediffmailcom
)

)

[_errorsByLevel] => Array
(
[Fatal] => Array
(
[0] => Array
(
[code] => 8000
[params] => Array
(
[0] =>
)

[package] => CRM
[level] => Fatal
[time] => 1130779245.8049
[context] => Array
(
[file] => /var/www/modules/civicrm/api/utils.php
[line] => 46
[function] => _crm_error
)

[message] => Email not valid abccc00@rediffmailcom
)

)

)

[_package] => CRM
[_compat] =>
[_msgCallback] => Array
(
[0] => crm_core_error Object
(
[_errors] => Array
(
)

[_errorsByLevel] => Array
(
)

[_package] => CRM
[_compat] =>
[_msgCallback] => Array
RECURSION
[_contextCallback] => Array
(
[0] => RECURSION
[1] => getFileLine
)

[_errorCallback] => Array
(
)

[_logger] => log_display Object
(
[_opened] =>
[_id] => 6a735d3b56d471f0cded2a6262719a0a
[_ident] =>
[_priority] => 6
[_mask] => 255
[_listeners] => Array
(
)

[_error_prepend] =>
[_error_append] =>
)

[_errorMsgs] => Array
(
)

)

[1] => getErrorMessage
)

[_contextCallback] => Array
(
[0] => crm_core_error Object
(
[_errors] => Array
(
)

[_errorsByLevel] => Array
(
)

[_package] => CRM
[_compat] =>
[_msgCallback] => Array
(
[0] => RECURSION
[1] => getErrorMessage
)

[_contextCallback] => Array
RECURSION
[_errorCallback] => Array
(
)

[_logger] => log_display Object
(
[_opened] =>
[_id] => 6a735d3b56d471f0cded2a6262719a0a
[_ident] =>
[_priority] => 6
[_mask] => 255
[_listeners] => Array
(
)

[_error_prepend] =>
[_error_append] =>
)

[_errorMsgs] => Array
(
)

)

[1] => getFileLine
)

[_errorCallback] => Array
(
)

[_logger] => log_display Object
(
[_opened] =>
[_id] => 6a735d3b56d471f0cded2a6262719a0a
[_ident] =>
[_priority] => 6
[_mask] => 255
[_listeners] => Array
(
)

[_error_prepend] =>
[_error_append] =>
)

[_errorMsgs] => Array
(
)

)