Since the webmail update, you may encounter errors on the webmail while consulting your messages.
You may encounter issues on the attachments too, as it is limited to 2MB instead of 25MB normally.
Our technical team is doing currently the necessary operations in order to be back to normal as soon as possible.
Sorry for the inconvenience this issue may have caused to you.
UPDATE : most of the issues should be fixed now. We are still analyzing and fixing the remaining problems.