How to use and switch at runtime multiple mail drivers in Laravel 5.3?

Question

Sometime we need to use more than one mail drivers to cover different areas, but now Laravel 5.3 only supports one, how can we extend it to support more mail drivers and be able to switch the drivers at runtime?

Answer 1

Like all Laravel classes, the mailer implements standard laravel interfaces:

class Mailer implements MailerContract, MailQueueContract
{
  ...
}

If you want to create your own mailers, then all you need to do is implement the contracts in your own class:

class MyMailer implements MailerContract, MailQueueContract
{

}

To use these different mailers, you will need to overide the register() function in the MailServiceProvider class to return the mailer instance you require.