Adapt to Swiftmailer 5 and Swiftmailer 6 version of class Swift_ConfigurableSpool

[thirsch]

@thePanz as promised, here is a possible solution of the swiftmailer issue. What do you think?

Btw. as the swiftmailer package is discontinued but needs a small adjustment for php 8.2: Should we clone the official repo in fos1 as well or try to adapt to symfony/mailer?

[connorhu]

+1 for symfony/mailer wrapper as a mailer plugin.

[thePanz]

For reference: #240 (comment)

[thirsch]

Do you have any experience, how to use the spool? I've thought about creating a test for it. While browsing the test sources, I've come across https://github.com/FriendsOfSymfony1/symfony1/blob/master/test/unit/mailer/fixtures/TestSpool.class.php which is referencing Swift_Mime_Message as well.

[connorhu]

I am currently using Swfitmailer with spool under Symfony5. I can figure out how to set it up here.

[thePanz]

we might need to run the tests on the CI with --prefer-lowest to test both versions of the SwiftMailer, wdyt?

[connorhu]

@thirsch File(system) spool example configuration:

factories.yml

  mailer:
    param:
      delivery_strategy: spool
      spool_class: Swift_FileSpool
      spool_arguments:
        - "spoolpath"

[connorhu]

Btw I found this about spools:
https://symfony.com/legacy/doc/more-with-symfony/1_4/en/04-Emails#chapter_04_sub_the_spool_strategy