symfony/mailer v6.4.21

on PHP Packagist

Changelog (v6.4.20...v6.4.21)

• bug symfony/symfony#60256 [Mailer][Postmark] drop the Date header using the API transport (@xabbuh)
• bug symfony/symfony#60057 [Mailer] Fix Trying to access array offset on value of type null error by adding null checking (@khushaalan)
• bug symfony/symfony#60094 [DoctrineBridge] Fix support for entities that leverage native lazy objects (@nicolas-grekas)