tejas sarade: > Hello, > > As per the RFC 5321 when DNS lookup for recipient domain returns empty MX > records it should try to deliver mail to A record of that domain.
You mean: no MX records; otherwise this is correct.
> Is there any way in Postfix to disable this behaviour?
This will not be implemented. There is no legitimate requirement
that all email domains have MX records.
Wietse
