It's MIT licence.
Their website does funny URL modifying while-you-scroll, which makes me suspicious.
On first glance, there are suggestions that they may depend on mailjet in subtle ways (quite a lot of "mj-..." in their output), but might not be an issue if they don't pull in excessive mailjet resources and/or we can self-host the definitions.
Note that there are other email editors we've tried that also work well enough but with significant issues.
MailJet Markup Language responsive email transpiler.
It's MIT licence. Their website does funny URL modifying while-you-scroll, which makes me suspicious.
On first glance, there are suggestions that they may depend on mailjet in subtle ways (quite a lot of "mj-..." in their output), but might not be an issue if they don't pull in excessive mailjet resources and/or we can self-host the definitions.
Note that there are other email editors we've tried that also work well enough but with significant issues.