Sending bulk email using laravel queue - php

Question

We are trying to send bulk email (100k) with PHP Laravel framework. Which way is the correct way to send bulk email with Laravel queue?
Case 1.
//controller
public function runQueue(){
dispatch(new ShootEmailJob());
}
//job
public function handle(){
$emails = EmailList::get(['email']);
foreach($emails as $email){
Mail::to($email)->send();
}
}
Case 2.
//controller
public function runQueue(){
$emailList = EmailList::get(['email']);
foreach($emailList as $emailAddress){
dispatch(new ShootEmailJob($emailAddress->email));
}
}
//job
public function handle(){
Mail::to($emailAddress)->send(new ShootMail($emailAddress));
}
Which one is the correct approach case 1 or case 2?

Answer 1

The first approach will first fetch all emails and then send them one by one in one "instance" of a job that is run as a background process if you queue it.
The second approach will run n "instances" of jobs, one for each email on the background process.
So performance-wise option 1 is the better approach. You could also wrap it in a try - catch block in case of exceptions so that the job does not fail if one of the emails fails, e.g.:
try {
$emails = EmailList::get(['email']);
foreach($emails as $email){
Mail::to($email)->send();
}
} catch (\Exception $e) {
// Log error
// Flag email for retry
continue;
}