[Koha] Add time lapse between notices when sending emails.

[David Liddle]

If I knew what precise mechanism was used to send messages from Koha,
I would happily look into the matter. The Koha system I help manage
doesn't use a mail service that applies rate limits in this fashion,
but my own work email runs on Microsoft 365, which does implement a
limit of 30 messages per minute. I manage that system, and I have
colleagues who run up against the limit from time to time. See
https://learn.microsoft.com/en-us/office365/servicedescriptions/exchange-online-service-description/exchange-online-limits#sending-limits-1

So, if anyone out there is sending mail over M365, be aware that you
could conceivably hit the limit if you have any event in Koha that
will send many messages at once.

Regards,

David Liddle

IT Manager
david.liddle at wycliff.de (just not for this list)

Wycliff e.V., https://wycliff.de
Seminar für Sprache und Kultur, https://spracheundkultur.org
Internationales Tagungszentrum Karimu, https://karimu.de