Is there anything else to adjust (I don't see any) in order to upgrade 3 to 3.1, I've try bulkSend but none of my email where sent with the version's option changed to 3.1. They do in 3.
I add the swiftmailer event in the bulkSend method of your MailjetTransport, they seem correct.
Any idee of what happens ? I don't have the log of the API response (which would help a lot but your Client call method is private and I couldn't override your Client Class)
using Symfony 3.4
adding header : X-Mailjet-TrackOpen
Is there anything else to adjust (I don't see any) in order to upgrade 3 to 3.1, I've try bulkSend but none of my email where sent with the version's option changed to 3.1. They do in 3. I add the swiftmailer event in the bulkSend method of your MailjetTransport, they seem correct. Any idee of what happens ? I don't have the log of the API response (which would help a lot but your Client call method is private and I couldn't override your Client Class)
using Symfony 3.4 adding header : X-Mailjet-TrackOpen