Sporadic yet frequent email issue

[lost108]

I see what you're saying. I guess our issues our a little different. We have Bind disabled on our setup so that all DNS lookups must be made from the authoritative name servers.

If we want mail that was sent locally (i.e. via PHP) to be delivered to the correct MX server, we just remove the domain from the /etc/posfix/ispcp/domains file (don't forget to overwrite the /etc/ispcp/posfix/working/domains file as well). This will cause the local lookup to fail and an external lookup will return the correct MX server.

Not sure how it'd work with Bind running on your server though... Might still be a lost cause.

Hope that helps! Have a nice weekend.