kokoajin
(Kokoajin)
July 17, 2026, 3:44am
1
Description
I known it a known issue but I still get duplicated sent/reply mail in outlook. I try to following the guide line here
This is a long-standing known issue with Microsoft/Outlook accounts — Outlook’s server automatically saves sent messages to Sent, but often does it very slowly. Mailspring thinks the server will not save a copy, and saves its own to ensure the sent message is not lost, resulting in duplicates.
Workaround: Go to outlook.live.com (or Outlook on the web for work accounts) > Settings > Mail > Compose and reply > disable “Save copies of messages in the Sent Items folder”. This lets Mailspring manage…
But there no longer any option to disable “Save copies of messages in the Sent Items folder” in outlook website it self.
I trying to specific separate folder for SENT in mailspring app and it do not help. Are there any solution yet?
To Reproduce…
Steps to reproduce the behavior:
Expected Behavior
Screenshots
Setup
OS and Version: Window 10, Fedora 44
Mailspring Version: 1.22.0
Additional Context
Xykorg
October 24, 2026, 4:29pm
3
1 Like
bengotow
(Ben Gotow)
October 30, 2026, 3:01am
4
Thanks for your help with this @Xykorg ! I’ll make sure this goes out in a patch release soon. We’re getting the Calendar ready to launch but I don’t think this fix needs to wait for all that. Appreciate you catching this.