Change subject of existing Outlook email (Without custom activity)

[DEATHFISH]

Hi, how do I change the subject of an existing Outlook email?

There are existing threads such as this one

Modify existing Outlook mail subject

Hi, It could be possible to modify the subject of an existing mail in my outlook using the uipath activities? i have my mails in a list and the specific mail in a variable, it could be possible to modify that variable and update in outlook? thank you

However I am not allowed to use custom activities due to security protocols

Any means to do this via e.g. invoking methods?