How many emails can be sent from your domain mail?

Question

Mail for domain

Tell me people who know what the maximum number of letters can be sent from the mail of their domain name. for example, with [email protected] if you do not use Yandex and mail interfaces, but use your own program ...

Answer 1

There are no restrictions
If you can not fall under the spam filter of mail services, then the recipients will even receive emails

Answer 2

Previously, hosting limited me to 200 emails per day from my domain, then I connected to https://smtp.bz and started sending 1000 emails and 5000 emails, as many as you like) it all depends on the smtp server and the IP address on which it is located , it is limited by hosters