Hello,
On our gateway server, we have:
transport_maps = hash:/etc/postfix/transportmap
/etc/postfix/transportmap
noa.gr relay:[vmail.noa.gr]
admin.noa.gr relay:[vmail.noa.gr]
nestor.noa.gr relay:[vmail.noa.gr]
space.noa.gr relay:[vmail.noa.gr]
meteo.noa.gr relay:[vmail.noa.gr]
gein.noa.gr relay:[vmail.noa.gr]
technet.noa.gr relay:[vmail.noa.gr]
astro.noa.gr relay:[vmail.noa.gr]
Is there a way to configure a "backup relay" (i.e. a secondary next
hop), so as to, if vmail.noa.gr does not respond, then incoming mail can
be attempted to be delivered to the backup relay (for example to
vmail1.noa.gr)?
I understand that this complicates delivery in the sense that if the
backup relay does not respond as well, postfix should decide what to do;
I would think that it would keep it in the queue and retry both "relay
points" each time, with the same sequence.
Please advise on possible ways in which we can configure such a
secondary relay.
Thanks and best regards,
Nick
