Deprecated function: Creation of dynamic property Drupal\symfony_mailer\Email::$_symfony_mailer_log

@jcontreras, fixed the issue and created Patch. please kindly review it.

When I added this patch, I got another error and now it's fatal:

TypeError: Drupal\symfony_mailer_log\Plugin\EmailAdjuster\LogMail::Drupal\symfony_mailer_log\Plugin\EmailAdjuster\{closure}(): Argument #1 ($address) must be of type Drupal\symfony_mailer_log\Plugin\EmailAdjuster\AddressInterface, Drupal\symfony_mailer\Address given em Drupal\symfony_mailer_log\Plugin\EmailAdjuster\LogMail->Drupal\symfony_mailer_log\Plugin\EmailAdjuster\{closure}() (linha 124 de /var/www/(...)/web/modules/contrib/symfony_mailer_log/src/Plugin/EmailAdjuster/LogMail.php).

Now it works.

The attached patch fixes an issue with the call to getLogger() - so I have committed it.
However, the original issue reported here is the fact that we set a dynamic property: `$email->_symfony_mailer_log = $log;`
This has not been resolved yet.

Created an MR to fix the issue with the dynamic property - the LogMail object doesn't seem to get re-used when I stepped through it, so I stored the log object directly there, but maybe someone knows why that might be a bad idea 😅

I've added a patch that removes the error for us. Hopefully it can help someone else as well (until the repo is updated)

Thanks justafish, that seems like the correct approach.
I have merged the MR now.

Automatically closed - issue fixed for 2 weeks with no activity.