Symfony version(s) affected

6.3

Description

Since I upgraded from esendex-notifier 6.2 to 6.3 I get an error message from esendex : "400 - No messages were supplied"

Profiler with 6.2 =>

Profiler with 6.3 =>

How to reproduce

• upgrade the symfony/esendex-notifier in the composer.json to 6.3
• run composer update symfony/notifier

Possible Solution

As you can see in the profiler the "messages" is missing a dimension so it's serialized as an object instead of an array of objects.
So updating this =>

To this =>

Seems to do the trick :

Additional Context

No response