[e-mail] is not delivering emails Re: Undelivered Mail Returned to Sender

[Sérgio Basto]

On Seg, 2016-03-21 at 18:15 +0000, Mail Delivery System wrote:
>  This is the mail system at host lists.fedoraproject.org.
>  
>  I'm sorry to have to inform you that your message could not
>  be delivered to one or more recipients. It's attached below.
>  
>  For further assistance, please send mail to postmaster.
>  
>  If you do so, please include this problem report. You can
>  delete your own text from the attached returned message.
>  
>                     The mail system
>  
>  <ocaml-devel(a)lists.fedoraproject.org&gt;: host
>      mailman01.vpn.fedoraproject.org[192.168.1.118] said: 550 5.1.1
>      <ocaml-devel(a)lists.fedoraproject.org&gt;: Recipient address
>  rejected: User
>      unknown in local recipient table (in reply to RCPT TO command) 
-- 
Sérgio M. B.