When I send an email, sometimes up to 5 copies of the sent email appear in the sent items folder.
It’s probably a server issue.
When you send a message, eM Client waits for confirmation from the server before deleting it from the Outbox. If the server doesn’t respond correctly then it is uploaded again.
If you have a paid license, and can reproduce it, I suggest you open a support ticket and we can look at some logs to see what is happening.
my lizenz is activation key is: [redacted]
When do you have time to controle?
I have this problem also.