[Mailman-Users] problem with upgrade to 2.1.4

hi, I have just served an upgrde as the version 2.1.b1 to the version 2.1.4; on 6 present lists in the server 3 of the more important they have this error in the page of administration of the list: Traceback (most recent call last): File "/home/mailman/scripts/driver", line 87, in run_main

[Mailman-Users] unknown mailer error 2

Hi I have installed Mailman2.1b1 and when I send email at the list I receved this message: - The following addresses had permanent fatal errors - "|/home/mailman/mail/mailman post sbn-liguria" (reason: 2) (expanded from: <[EMAIL PROTECTED]>) - Transcript of session