Exchange 2013 restring emails sent per day - exchange-server

In Exchange 2013 is there a way to restrict the amount of emails sent per day? I want to make sure nobody is sending spam mail to 1000s of recipients at the time.
Thanks in advance

I guess I have to answer my own question.
Create a throttling policy and set RecipientRateLimit or MessageRateLimit. One does per 24 hours and the other does like per minute.

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Many "Accepted" messages sent by Microsoft365 when we updated a event using Graph API

Our product (SaaS) has a function that connects to Microsoft365. When a user creates an event with meeting rooms on Outlook, our service detects it and writes some messages in the event using Graph API.
On March 30th, 2022, Microsoft365 suddenly started sending many emails. They describe that the meeting room accepted the request. It's ok if we receive an email once, but we receive them about 5 to 10 times in some minutes.
Without our service, we don't receive many emails, only once.
We didn't update our service on that day, so we have been confused about it.
We got audit logs from our Microsoft365 admin, and it shows that the event was updated many times by the Microsoft365 server itself (not by our service).
We are wondering what is happening. Does someone have any ideas?
Thanks.

QuickSight Email reports at intra day frequency

I have created a dashboard which needs to be sent out via email report 3 times a day. How can I schedule the email report to be sent out multiple times a day?
Currently I only see the option to send it out at one time and I am not able to add more schedules to it.
Currently it is not possible to schedule email report to be sent out multiple times a day. An ugly workaround that I can think of is to replicate this dashboard 3 times and set different schedules for each copy of the dashboard.

Office 365 REST API, Outlook Streaming Service - User Account Blacklisted?

We've been using Outlook's streaming service for emails and events for about a month and a half and haven't run into any issues. However, yesterday at around 6:45 PM Pacific Time I stopped receiving notifications for the email account: matthewbordas#outlook.com. There were no errors transmitted back to us and the stream kept reconnecting and the subscriptions weren't expired. This problem is still persisting to this moment, yet all our other user accounts are fine. I should add that this account has been used significantly for testing and the content of the emails sent to and from it have been gibberish; could the API blacklisted have it and marked it as spam? That's the only reasonable conclusion I can come to, but there isn't any documentation on this case and I haven't received any messages from Microsoft indicating that such a restriction was placed on the account. Any help would be greatly appreciated, thank you!

Customers not receiving SMS from Twilio

My customers are not receiving SMS to verify their OTP. We have integrated Twilio with Parse and is using it for OTP Authentication. We are based out of India.
We faced this during test account. It never used to send SMS in the night and received all SMS next day morning. Now we are using a paid account and still the same issue i.e. my customer did not get any SMS during night and also not in the morning. Kindly help.
We will not be able to do business if our customers do not receive OTP SMS.
Is this a known issue ?
India is difficult to get text messages to, there are lots of rules and restrictions
Completed a project recently using a Twilio competitor (Clickatell) and it was the very same problem.
Frow Twilio's website:
Are there limitations on sending SMS messages to Indian mobile devices?
3. They are only delivered between the hours of 9 A.M. and 9 P.M. local Indian time
If you’ve been seeing delivery delays when sending to Indian numbers,
make sure you are making the requests during the operational hours of
9 A.M. to 9 P.M., as overnight messages are likely to be cached until
the next day.
https://www.twilio.com/help/faq/sms/are-there-limitations-on-sending-sms-messages-to-indian-mobile-devices
As E.J. said above, India has a lot of regulations to follow when sending SMS.
This is not a Twilio specific issue.. Other SMS APIs will have the same outcome.
For example, as stated on Nexmo's Country Specific Rules & Regulations webpage:
"We can only guarantee message delivery between 9am to 9pm. Messages submitted after 9pm we will attempt to send, but due to local regulations, these messages will be queued until the morning and you will be charged for them as usual."
Here is some more in-detailed information: India: Features & Restrictions

How to send emails without speed limit?

I got some errors about sending mails too quick in 15 minutes when sending mails.
It seems there is a speed limit of sending mails.
But how many mails can be sent in 15 minutes?
Is this a standard or private rule based on vendor?
It depends on both your mail service provider, and also the target system. For example gmail will let you send 500/1000 (or more) emails per day, per account depending on your agreement with them.

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