Bug#296492: exim4: remote_smtp transport should fallback to ipv4 with fallback_hosts too

[Marc Haber]

On Tue, Feb 22, 2005 at 08:34:06PM +0100, Laurent Fousse wrote:
> When sending to a remote host that has both an ipv6 and ipv4 RR, exim
> falls back immediately to ipv4 when ipv6 connectivity is not present.
> I noticed however that exim is stuck to ipv6 when it's trying to send
> to a "fallback_host".

Can you give some more information about your setup? I believe it
would be interesting to have at least the following information:

  - the relevant parts of your exim configuration, especially of
    course the router/transport combination containing the fallback host
  - Your IP setup, hopefully sufficiently described by the output of
    the "ip addr" and "ip route" command.
  - The output of exim -bt with an address that can be used to
    reproduce the issue
  - Infomation about what your local resolver returns when it is
    queried for the name of the fallback host
  - Information how attempts to establish an SMTP connect to the IP
    addresses the local resolver returns go out

Greetings
Marc

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