[Mailman-Users] Problem with MailMan

[Om Prakas]

i have a problem with my mailman setting or configuration.. i use sendmail only. and this wat i get when i do a test using the test list.   when i send a email this is the reply:   ----- The following addresses had permanent fatal errors ----- <[EMAIL PROTECTED]>     (reason: 550 5.1.1 <[EMAIL PROTECTED]>... User unknown) Why is this so? i dunt know why i get this. please help me.     Om Prakas