Adding attachments doesn't work currently!
Use one of the alternative programs below if sending attachments is needed.

In case of problems consider using one of the newer Horde sites:
dr. Jones, Homebase, or Biks.

Here is a list of all of the (older) IMP sites
(remember to select your own organisation when logging in...!):
dr. Jones, A-host, Homebase, Macvaerk.

There's also a few alternative webmail programs
(less secure, but might work better in some situations):
NOCC and AeroMail (jones.dk/homebase.dk).