Mailyte is the only platform combining team inboxes, transactional/API email, and marketing campaigns in one place — on your own domain. Most teams stitch together Workspace, Postmark, and Mailchimp; Mailyte replaces all three. It's also open source (AGPL-3.0): self-host free on your own hardware, or let us manage it — same product, no lock-in either way. Built-in SPF/DKIM/DMARC checks and a live delivery view keep your mail out of spam, out of the box.