Re: DELIVERY FAILURE: User akan.nyman (akan.nyman@nvso.sll.se) not listed in public Name & Address Book

["Erik P. Skaalerud" <erik@xxxxxxxxxxxx>]

Postmaster@xxxxxxxxxxx wrote:
> Your message
>
>   Subject: Re: Hi
>
> was not delivered to:
>
>   akan.nyman@xxxxxxxxxxx
>
> because:
>
>   User akan.nyman (akan.nyman@xxxxxxxxxxx) not listed in public Name & Address Book
[blabla]

Matt, wouldnt it be wise to block all incoming mails with the patern 
hostmaster@* ?

- Erik