[CentOS] Sendmail - block mail based on recipient address?

[Sean Carolan]

> One silly thing (but needs to be asked):
>
> Did you rebuild access.db after editing access?

Yes, the rebuild command is built into my init script.  I just double
checked it.

I'm getting better results having changed the setting to REJECT
instead of DISCARD.  I will investigate a bit further when I have some
spare time.  For now I have verified that the mail server is rejecting
all mails to the problem addresses.