I have a question about the "interface" option and which IP protocol it
chooses as I obviously don't understand it fully.
Setup:
Host A: Has IPv4 and IPv6
Host B: Has IPv4 and IPv6
Host A: Has a transport with an explicit "interface = 1.2.3.4" IPv4
Host A now sends mail to Host B and uses this transport correctly but
chooses the hosts's IPv6 instead of the configured interface IPv4 address.
"telnet -b 1.2.3.4 Host-B smtp" works fine.
Host B is actually three servers with Round-Robin DNS and IPv4 & IPv6.
The variable $host_address shows the IPv6 address in the debugging
output. The "hostlist" in the debugging output shows all IPv4 and IPv6
addresses.
Any ideas or hints?
Greetings,
Kai Bojens
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