[Mailman-Users] mailman on localhost

[Pedro Sánchez]

Hi everyone...

Im trying to test mailman in my local server (127.0.0.1) whit local user.

the problem is that when i'm trying to add a new list whit the email 
address user at localhost mailman not allow me to do that or if i put a 
valid email address like user at domain.com mailman give an error when i'm 
trying to add local user to the list , local users has a emal address 
like this user at localhost

some clue?

Thank you