On Aug 4, 2009, at 8:31 AM, Andrew Long <furs...@gmail.com> wrote:

$ host -t mx charite.de
charite.de mail is handled by 120 mail.charite.de.
charite.de mail is handled by 110 mail-ausfall.charite.de.

and then use:

domain.de   charite.de

I'm afraid I'm not quite clear on this. They're are two mx's in the
dns for the domain, a la

$ host -t mx domain.com
domain.com mail is handled by 20 domain.com.bak-mx.smtpblah.com.
domain.com mail is handled by 10 domain.com.pri-mx.smtpblah.com.

so my transport would look like... what?

It would look like Ralf already showed you. But if you are sending to example.org which has the two MX RRs, then there is no need to configure transport maps. If you do use transport maps, the lack of brackets around the nexthop means Postfix will use MX lookups when deciding which nexthop to choose.

You CANNOT specify multiple nexthops in the sense you tried to in your original post.

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