[imp] Can't download attach file > 1MB

[Fan Ti Teo]

Hi,
I use Horde version 3.03, IMP 4.02, Courier-IMAP. From webmail IMP, I can't
download attach file with size > 1MB when I config IMP to use Courier-IMAP,
but with POP3, it's ok.

Anyone have same my problem? does IMAP or WU-IMAP client or IMP have
problem? Hope anyone can help.

Thanks

Fan Teo