Emails to multiple recipients on same server not getting delivered

[Steve Dondley]

> So where are you calling Spamassassin for each email?  Hmm... maybe
> you need to have -d ${recipient} in your spamassassin call?
> Or better yet, call the 'deliver' program from dovecot like I showed
> isntead.
> 
>    spamass-dovecot_destination_recipient_limit = 1
>    virtual_alias_maps = hash:/etc/postfix/virtual-alias-maps
>    virtual_mailbox_maps = sqlite:/etc/postfix/virtual_users.cf
>    virtual_transport = spamass-dovecot
> 

I've simplified the configuration by turning off spamassassin and 
removing any mention of it from master.cf. Things are working now. But 
I'm still baffled why basically the same master.cf config is working on 
one server but not another. I wonder if different SA configs might be 
the problem.