New setup Gmail.com account and Outlook.com account sent email duplicates in sent folder with outlook.com

Mail
1

Sendin new email from outlook.com after sent open sent folder and see email and a duplicate note: receiving account receives  just one

2

Hello Dave,
do these duplicates only appear when you send the message from eM Client? Does this happen to your gmail account as well?
Do you have the option to “Save copy of sent messages in Sent folder” checked in the Tools>Settings>Mail>Send section?

Regards,
Olivia

3

  1. only appear in eM Client

  2. does not appear Gmail

  3. Save copy Sent folder checked; Unchecked and resolved issue.

Thanks.

4

Hello Dave,
glad to hear unchecking this option solved your issue.

Regards,
Olivia