Problems with webmail - HELP!!

Hi,

I use moregroupware webmail version 0.7.2 for my
organisation and recently I have been experiencing
several problems with the programme. Suddenly I am
unable to access archived emails received 2 months or
longer ago – this error messages appears:

This E-mail can not be found on the filesystem, is
damaged or possibly in use.
Number in Database: message_id=24389
Filename: Disabled for security reasons.

As many of these emails contain information I need, I
really need to work out how I can read these emails.

Also this week another problem has developed where
emails that I am sending are not getting through to the
recipients even though according to webmail the
messages are being sent successfully.

I don’t really know how the technical support for the
webmail works as I inherited this system from a
previous administrator but would very much appreciate
some guidance as my organisation relies on this system
for communications.

Many thanks, Adam Cormack
Email: adamcormack23@hotmail.com
adam.cormack@grazinganimalsproject.info
Tel: +44 (0)1636 670095