You may have run across Mad Mimi due to their aggressive marketing with GoDaddy, their parent company!
They've been around for a long time, and are competitively priced: cheaper than — well, not cheaper than Buttondown, but certainly cheaper than Mailchimp and many other competitors. Their features are easy but basic — very much harkening back to an older version of the web, but missing many essential features common to good web applications of 2023 such as strong local support, autosaves, integrations, and more.
To quote Style Factory Productions'' review of Mad Mimi:
Many users will find that there are some noticeable omissions when it come to the functionality available in Mad Mimi, particularly when it comes to autoresponders, marketing automation, reporting and split testing.
Mad Mimi | Buttondown | |
Scheduling | — | |
Web archive | — | |
Send from custom domain | — | |
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CSS | — | |
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Metadata | — | |
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Host on custom domain | — | |
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Remove Buttondown branding | — | |
Dedicated IP | — |