Unfortunately all the ingoing emails sent to an email address ending on @arago.utwente.nl will not be delivered if not send from an email address ending in @arago.utwente.nl.
We apologise for the inconvenience. Our CCCP members are working on a solution to the problem.
In the meantime the board of S.V. Arago can be reached with: email@example.com
Update: the mail server is up and running again. Which means the board can be reached once again at: firstname.lastname@example.org