Create ticket in different queues per mail

I want to setup that I can send a ticket to a queue using a specific
mail address.
I didn’t understand what and how the settings are important.
Please help me!

How important is it to set in the queue the correspondence and comment
I already created in my aliases file a line with my queue.
What do I have to set in my mailserver? I use exim.

I think it has something to do with exim because if I don’t send to
rt@rt… I get the following error in my exim mainlog:

verify failed for SMTP recipient AAA@rt… from

the name of my test queue is AAA and I set the correspondence address to

And here the first line of my aliases file:

rt: “|/usr/bin/rt-mailgate --queue AAA --action correspond --url

Thanks for any help.