Up to now we use the following ascii art to show the difference in our mail/ticket system:
--> means "incoming" <-- means "outgoing"
But some users complain, that it is not immediately clear what this means.
But some how I don't like this. "i" like incoming ....
The icon (or ascii art) is used if there are several tickets/mails displayed in a table.
How could you display this short and easy to understand?
Update1: It is an intranet web frontend.
Update2: One place where we display incoming and outgoing mails in one place: mail threads. It should be clear which mails were sent and which were received.