AWS EC2 instance recommendations

Hi all,

I’m looking for a recommendation on the AWS EC2 instance I should use for Mautic. I plan to use the Bitnami Mautic install, and tweak configuration from there.

I’ll be using AWS SES for email.
I anticipate sending a “segment” email to approximately 20K people each month, possibly growing to 60K/month over time.
Contacts could grow up to 500,000 over the next 7 months.

Bitnami is defaulting to:
Disk size: 10GB
Server size: t2.micro

Is that sufficient for a the above setup?