Doesn't handle try\catch correctly. How to fix?

Question

PHP

Hello.
With exceptions both within PHPMailer and PHP, one can say it didn’t work (I heard it, but I didn’t use it), so don’t judge strictly if I make some banal mistake.
I got on the toaster, because my head is already swollen, from the information that I read about exceptions and I seem to be doing everything as recommended, but it still doesn’t work out to do what is required.
The bottom line is, I use PHPMailer to send letters, the mailing works, now it is necessary to wrap up checks, "some stages of work" ( probably it would be more correct to put it this way ): sending letters, checking the included letter template, correctness of the received data, etc.
I skid on creating a check when sending a letter. mailer->send();
The course of action is as follows:
1. I create my own class EmailSendingFailed, inherit from Exception

<?php declare(strict_types=1);

namespace extMailer;

use Exception;

class EmailSendingFailed extends Exception {}

Next, in the class that extends the standard PHPMailer class, I add

namespace extMailer;

use EmailSendingFailed;

...

//В методе отвечающим за отправку реализую try\catch
public function sending(string $event, EmailAddress $recipient, array $tpl = array()): void
    {
        $this->mailer->addAddress($recipient->email, $recipient->name);
        $this->mailer->Subject = $subject;
        $this->mailer->Body = $body;
        $this->mailer->isHTML(true);
        try {
            if (!$this->mailer->send()) {
                throw new EmailSendingFailed("Couldn't send email. Invalid sender address '{$recipient->email}'.");
            }
        } catch (Exception $e) {
            $e->getMessage();
        }
        $this->mailer->ClearAddresses();
    }

Then I "break" send(); (I specify the incorrect mailmail.ru format). As a result, letters stop being sent (which is quite logical :)), but the exception is not thrown.
Looked through by the debugger, an exception is generated, gets into the catch block and the script continues to work (although its work should be interrupted). Can you tell me why something like this can happen?

Answer 1

So you've caught the error, but you're not displaying it.
You still have code after the try-catch, so it's being executed.
UPD. This is what your method should look like

<?php
    public function sending(string $event, EmailAddress $recipient, array $tpl = array()): void
    {
        try {
            $this->mailer->addAddress($recipient->email, $recipient->name);
            $this->mailer->Subject = $subject;
            $this->mailer->Body = $body;
            $this->mailer->isHTML(true);
            if (!$this->mailer->send()) {
                throw new EmailSendingFailed("Couldn't send email. Invalid sender address '{$recipient->email}'.");
            }
            return ['status' => 'success'];
            $this->mailer->ClearAddresses();
        } catch (Exception $e) {
            return ['status' => 'error', 'error_message' => $e->getMessage();];
        }
    }

The result of the execution is an array with the status, and if any, with the error text.