[FFmpeg-user] Missing emails as cause of domain relocation

[Reindl Harald]

Am 04.09.23 um 14:52 schrieb Ulf Zibis:
> 
> Am 04.09.23 um 14:43 schrieb Reindl Harald:
>>
>>
>> Am 04.09.23 um 14:35 schrieb Ulf Zibis:
>>> because of a domain relocation, my email was not reachable from 
>>> 2023-09-01 13:54 UTC to 2023-09-04 11:38 UTC.
>>>
>>> Is it possible to resend the missing messages for 
>>> ffmpeg-user at ffmpeg.org and ffmpeg-devel at ffmpeg.org?
>>
>> no - that's not how email works
>>
>> but that's just 3 days - why should you lose any mail because of 3 
>> times downtime as long as you did not reject inbound mail?
> What you please mean by "3 times downtime" and "inbound mail"?

i meant 3 days

>> even we retry for 3 days (maximal_queue_lifetime) while the postfix 
>> default is 5 days
> 
> My downtime was a little less than 3 days, so why does the retry not work?

because it takes time?

the interval of retries increases as it makes no sense trying every 5 
minuts for one moron which don't manage a server relocation

seriously - the expected downtime is seconds to minutes when properly 
planned even for thousands of accounts

* new system online
* DNS TTL down to 5 minutes
* imapsync
* take down the MTA on both sides
* change dns record
* final imapsync
* start MTA
* done