[MlMt] Duplicate messages in Sent Items (Exchange account)

[Henry Seiden]

Luis,

I have not experienced the issue on my Outlook account, but it is infrequently used.

Could this be caused by the settings on your server? IOW, can you see the same problem using another client (Apple Mail or Outlook Mail or web app)?

Respectfully,

Henry Seiden
- -
Techworks Pro Co.
E: info<at>techworkspro<dot>com
W: http://techworkspro.com

On 3 Mar 2026, at 8:45, Luís Trevisan wrote:

> Hi all,
>
> I'm experiencing duplicate messages in my Sent Items folder in Microsoft 365 / Exchange account.
>
> Setup details:
> - Account type: Exchange / Outlook.com (Microsoft 365 corporate)
> - The duplicates appear exclusively in the Sent Items folder
> - The duplicate messages are identical
> - No other folders are affected
>
> Has anyone experienced this with an Exchange account and found a reliable fix?
>
> Thank you in advance.
> Luís_______________________________________________
> mailmate mailing list
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