Unable to change 'send mail as' display name.

Unable to change 'send mail as' display name.

Hi,


We are having trouble with changing the display name for one of our email accounts.

I have corrected the name by going to settings > Access old version for > Send Mail As - and updated, but this hasn’t propagated through into the system, and still showing the incorrect name.


Any help would be much appreciated.


Thank you.