User `arn:aws:sts::xxxxx:assumed-role/aws-elasticbeanstalk-ec2-role/i-xxxx' is not authorized to perform `ses:SendEmail' on resource `arn:aws:ses:eu-west-1:xxxx:identity/xxxx@gmail.com'
Solution:
go to -> Identity and Access Management (IAM) -> Attach policies -> add AmazonSESFullAccess