[Mailman-Users] Cron job to reset member bounce value

[Carl Zwanzig]

On 12/17/2019 10:24 AM, Ethan Rudnitsky wrote:
>   the issue with the server/MTA bring offline is a known and
> unavoidable issue because of lack of satellite availability overhead for
> most of the day unfortunately.

That is an entirely avoidable issue. When a destination MTA is offline/busy 
(which happens all the time and is accounted-for in SMTP), the sending MTA 
usually queues the messages and retries in 15/30/120 minutes, and usually 
keeps that up for at least 24 hours. If the sending MTA is giving up 
immediately and returning a failure, IMHO it's misconfigured (knowing the 
exact error code returned is important, here).

That said, the operator(s) of that server may not be interested in fixing 
the problem.

Do the satellite-served list members receive every message eventually or are 
they content to only receive ones sent during their connectivity window?
  If the -do- get all the messages eventually then they are being retried 
and the temporary failure is being counted as a bounce.

Later,

z!