I personally feel that ingame mail was implemented very poorly. Some QoL changes I would personally like to see.

1. Increase the amounts of items that can be sent at one time. 5 is clearly not enough IMO.

2. Increase Char limit, 200 char limit is way to short. Forced me to mail more than 1 letter to the same person when I shouldnt have to.

3. Ability to copy/paste

4. Ability to mail something to multiple people at once.

5. Be nice to see some different fonts and colors- over ability to have some customization would be nice.

6. Ability to mail stuff to my other characters, while I see why this was not implemented, it doesnt change RMT significantly.

7. Be nice to be able to mail things to people who are not on your friend list but I dont personally see this change happening..