I made the same move last year for my mailing list, but instead of Mailwizz I choose Sendy. Same setup though, using Amazon SES as the e-mail sending service.
It ended up saving me $600/year back then and would - at this point - be saving me roughly $2.000/year.
It ended up saving me $600/year back then and would - at this point - be saving me roughly $2.000/year.
Here's my write-up from back then; https://ma.ttias.be/mailchimp-sendy-saved-600-year/