The service seems working normal again.
As far as i know they tried to collect donations in the past but with very little sucess.
We tried a fund raise campaign to update a G/PGP plugin for SquirrelMail,
long story short: the plugin required the PRIVATE g/pgp key to be present on the server and so, we canceled the fund raise.
RIB is economically in perfect shape: we are glad to say that the project is self funding (with community donations) from around 1 year.
We hope to fix this spam problem asap ..
TY