RE: Sendmail problems

[Dave Cost]

> hash map  "Alias0": unsafe map file /etc/aliases.db: Permission denied
> 
> one.  Should there be a file called /etc/aliases.db?

try to issue "newaliases" as root on the virtual. 
This should create /etc/aliases.db

Then 

chown admin.admin /etc/aliases* 

And also and make sure 

chmod go-w /etc/aliases*

Dave.