When all deliveries to a site fail (a colhort of delivery agent
processes reports the destination is unavailable) the Postfix
scheduler puts the destination on a temporary 'dead destination'
list, to avoid spending resources on that destination.
Of course this design is not optimized for bursts
On 10/19/2022 3:10 PM, Eric Wilkison wrote:
We've got a pool of servers running postfix. Each server is running bind to
cache DNS queries. We are running into an issue where DNS queries are
intermittently failing (beyond scope for this discussion). When this happens
multiple times
On Wed, Oct 19, 2022 at 4:12 PM Eric Wilkison wrote:
Are there configuration options that will
> a) adjust the number of DNS failures before postfix starts deferring the
> messages
> b) adjust the timeout before postfix stops queueing messages
Take a look at minimal_backoff_time and
We've got a pool of servers running postfix. Each server is running bind to
cache DNS queries. We are running into an issue where DNS queries are
intermittently failing (beyond scope for this discussion). When this happens
multiple times consecutively postfix starts queueing ALL mail that
