Limit for PHP mail function?

I have WordPress set up on LEMP stack on $10 droplet.

1GB Memory 1 CoreProcessor 30GBSSD Disk 2TBTransfer

My WordPress site is multi user based and it sends out verification email with PHP mail() every time new user signed in or reset password and etc…

I’m wondering is there a limit for number of emails for PHP mail() or SMTP.

Thank you!

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I think you are looking for Virtual server to host your wordpress website. Try google there are lots of service provider who are offering same services.