How to set Email sending speed limit?

I have a forum on discourse but with slow sending speed limit (20/sec)
Am I able to set sending speed limit on discourse?

I’m asking this because I found that I got nearly 500,000 records everyday on unsubscribe_keys table, but only 9000 in mail_log and 1000 in skipped_mail_log, our forum have nearly 500,000 members, too.
I’m not sure whether it’s caused by sending email too fast and make some weird problem happened, so I’m trying to throttle the sending speed but with no luck.

Unsubscribe_keys

email_log

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You need to get a faster mail server and/or change settings so that let mail gets sent.

You can change how often summary emails get sent and change the max emails per day setting.

There is no rate limit setting.

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not sure whether sending rate is necessary…
because even we can increase to probably 60/sec,it’s still possible that the server send too fast and get blocked.

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What are you using to send email?

I use AWS SES service

Have you raised with their support?

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Why are so many Discourse members being mailed? What are they being mailed for, exactly? That’s the more relevant question.

On a typical Discourse install, the only “all users” email is the digest, and even that is specific to only users who have not been on the website in a week or more, but also haven’t been gone more than a year.

In general you only get emails when someone is speaking directly to you, and even then only when you haven’t touched the website with any web browser in the last 10 minutes.

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We had an activity before. (about several months ago) That activity attracted about 90 thousand members registered. And now they may leave for a few weeks. So system sent them the digest emails

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