Sending mails (and using cron with CI)

I always use an email queue in the database. It has many advantages, including resending, and verification that email was sent.

See this for the answer to your second question:

https://www.codeigniter.com/userguide3/general/cli.html

Btw - how make a CLI controller private - i mean not accessible from web?
I can only imagine a crutch - make a secret parameter and check it on the firs line of script.

Read the documentation for common functions:
https://www.codeigniter.com/userguide3/g...tml#is_cli

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