4
That was supposed to be fixed in this version. But it seems it is still giving troubles. It happens when running th module on a MS Windows host.
As far as there are no development activities planned before mid april, the only way to have that fixed is somebody submitting a patch in the next few days.
To be honest I do not have any hope regarding that: we received two patches, I believe, in more than six months...
I have no sourcecode here to look at, but if I remember right, the problem lies in /class/email_message.php. If you're able to fix yourself, just submit the patch and we'll merge it.
Bye,
ft
The WebMailFX Team