Moblog problems at Zettai

The moblog feature seems to work, but not when attaching a picture. This blog at manterola.org is hosted on Zettai.net as for the POP email account, I have tried with a manterola.org address, also served by Zettai, as well as with another external POP account.

In both cases, messages without attachments go finely into the blog. But not when attaching a picture, this error raises:

Error Type: IndexError Error Value: list index out of range

Another difference. To moblog from the zettai-based email account, I have to select the APOP option in the settings. In the non-zettai email account, it doesn't work with APOP. I had to unselect it.