[imp] Problem sending email when bcc??

[Francoise Le Bouleix]

Hi,

 I have a user complaining of an intermittent problem with IMP.
When he replies to an email and enters his email address in the bcc field,
he sometimes gets a "page can't be displayed" after hitting the send button.
The email is not sent and he has to start all over again.
He is using Browser: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)
and has cookies and Javascript enabled (says he).

Any idea what might be causing that?

Our settings are:

Horde Versions
Horde: 2.2.1
IMP: 3.2.1 (run IMP tests)
Turba: 1.1
Kronolith: 1.0
PHP Version
View phpinfo() screen
PHP Version: 4.3.1
PHP Major Version: 4.3
PHP Minor Version: 1
PHP Version Classification: release
You are running a supported version of PHP.

more info at: http://webmail.his.com/horde/test.php

/fran