[Mimedefang] Recipient verification on gateway/secondary-MX

[Kevin A. McGrail]

> Have you ever hit performance problems caused by access table being to
> big to be cached in memory?
> [sendmail can do 30+ access lookups per one single SMTP session message]

I haven't had that issue but I would imagine the performance of an access 
table is still far better than a milter being involved.   I agree with DFS' 
comment that sometimes you have to do it with a milter for flexibility, 
though.

Regards,
KAM