Your software
My Mautic version is: 3.1.0
My PHP version is: 7.2
Your problem
My problem is:
I tried to send an email using AWS SES API with Queue option and got below error:
These errors are showing in the log:
In AmazonApiTransport.php line 195:
Attempted to call an undefined method named “getAttachments” of class “Swift_Message”
Then i tried with Send Immediately option and it is working fine.