On Thu, Oct 21, 2021 at 07:15:19PM +0100, K.J. Petrie wrote: > I have a server which is on 24 hours/day and a desktop which is on when > I'm using it. Both have postfix used for delivering mail.
For ETRN to be useful, the frequently unreachable domain has to be listed in $fast_flush_domains. $ postconf -df fast_flush_domains relay_domains parent_domain_matches_subdomains fast_flush_domains = $relay_domains relay_domains = ${{$compatibility_level} <level {2} ? {$mydestination} : {}} parent_domain_matches_subdomains = debug_peer_list,fast_flush_domains,mynetworks,permit_mx_backup_networks,qmqpd_authorized_clients,relay_domains,smtpd_access_maps If neither the domain in question is in one of: * An explicit setting fast_flush_domains * An explicit setting of $relay_domains * An implicit setting of relay_domains from $mydestination with compatibility level < 2. nor its parent domains if parent_domain_matches_subdomains contains fast_flush_domains, then ETRN will not be able to any messages to flush. -- Viktor.