Bluewin mails do not go out

Hello

Recently it has been happening to me again and again that my messages are not sent when I press send. The message keeps reappearing under “Drafts”. Sometimes I have to click on it again and again for 30 minutes, then press send. Then it disappears in the drafts, but does not appear under sent. Back in the draft folder, the message appears there again. It’s exasperating and simply unacceptable. It also happens with messages without attachments, so it can’t have anything to do with files that are too large.

Many thanks for your input.