What are these set to?
relay_transport
default_transport

They should probably be "smtp".
--
Greg


Phil Cairns wrote:
> Hi,
>
> We're using Postfix+OpenLDAP+CourierIMAP, with four virtual domains.
> Mail coming in from anywhere is OK, and is directed to the right
> mailboxes. Mail being relayed via this server from inside to outside is
> not working because of a message in the log that reads like this:
>
> to=<user@outside.addr>, relay=virtual, delay=0, status=bounced (unknown
> user: "user@outside.addr")
>
> This suggests to me that Postfix is trying to relay to a virtual host
> that it manages, rather using smtp to relay out, having failed to look
> up a virtual address.
>
> These are the settings in main.cf that I think are relevant:
>
> mynetworks = 192.168.0.0/24 127.0.0.0/8
> local_transport = virtual
> smtpd_recipient_restrictions = permit_mynetworks, check_relay_domains
>
> relayhost is not set
> relay_recipient_maps is not set
> relay_domains is not set
> transport_maps is not set
>
> Any is gratefully received.
>
> Phil.