On 2025/11/08 5:52 PM, Marc MERLIN via Exim-users wrote:
if interface is set to an IPv4 address in the config, would would exim even try to do IPv6 and then, indeed, fail?
Yes - the "interface" option selects the interface. It does not directly set the local address that gets used, nor filter the list of peer addresses resulting from DNS lookup. It looks like the "failed to assign address" error is being treated as a message error rather than a host error, therefore resulting in a DEFER for the message rather than going on to try other hosts for the message. The dnslookup router has an option "ipv4_only" which might help. -- Cheers, Jeremy -- ## subscription configuration (requires account): ## https://lists.exim.org/mailman3/postorius/lists/exim-users.lists.exim.org/ ## unsubscribe (doesn't require an account): ## [email protected] ## Exim details at http://www.exim.org/ ## Please use the Wiki with this list - http://wiki.exim.org/
