reply to mail shown in sent folder but not sent using ipad with ios 13
I have an ipad using the latest version of iOS 13. I use a mail account on the imap server of orange.fr. When I reply to a message (possibly only occurring when from another orange.fr user) the reply is shown as sent in the sent folder but neither the original author of the note or myself, using bcc, receive it. The same applies when using the orange mail app or the ios mail app.
I also have an older ipad using iOS 10 - replying with this ipad works as it should, with all recipients receiving the reply.
Also replying using the orange internet version for mail works as it should.
Is this a known problem with iOS 13?
Thanks in advance for any help.
iPad, iOS 10