How to send email notifications correctly?

Question

PHP

Hello!
There is a small affiliate program in which almost every action provides for E-mail notification, starting with registration.
Now, after each action, there is a call to the function that forms the body of the letter and sends it via third-party SMTP, the problem is that there is a visible delay at the moment of sending and in my opinion this should not happen, how do E-mail notifications work in your projects?
So far, only one thought came to my mind - to save the letter in the database, write a script that will be launched by CRON (every minute?) And scan the database for unsent letters, well, send them in turn through the same function ...
- how much is it right? Never had to work with a large number of notifications before...

Answer 1

ruhighload.com/index.php/2010/07/09/gearman-%D0%B8...

Answer 2

When you need to control the process through the database
id status (0 wait,1 success ,2 work ) attemt
, you can execute tasks through cron, then you need to follow the queue yourself
The answer option above saves us from this thanks to a bunch of settings.