[MlMt] Option not to Put Sent Messages in Sent Folder

[Jolin Warren]

On 11 Jan 2025, at 19:49, froup via mailmate wrote:
> The only thing bothering me is that I am using MS Office 365 from my 
> work account, and the server would automatically copy the sent 
> messages to the Sent folder. So, with the same function provided by 
> MailMate, there would always be duplicated messages in the folder.

Years ago I had to use an Office 365 account for work and the MS server 
automatically copying the sent message was very irritating! But I found 
a solution… if you look at the headers in a message that the server 
copied to the Sent folder, you will find one or two headers that are 
unique to sent messages automatically copied by the 365 server. I then 
used one of these headers – 
`X-MS-Exchange-Organization-MessageDirectionality: Originating` – to 
create a rule on the Office 365 server:

```
Conditions:
    From: Jolin Warren
    Message header includes: 
X-MS-Exchange-Organization-MessageDirectionality: Originating

Actions:
    Delete

Stop processing more rules: ✓ticked
```

![](cid:04F36974-F8A1-4182-956C-164D3F151E07 at oakandapple.org 
"PastedImage.png")

This will delete the copy that Office 365 creates so you only have a 
single copy of your sent message (the one MailMate provides, which is 
the original before it’s been handed off to a mail server). This way 
you have standard behaviour with MailMate and you can get rid of Office 
365’s unorthodox duplicates.


-- 
=> Jolin
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