Short and clear. Don't see your question? The docs go deeper, and we're always an email away.
Sumezi is a multi-tenant newsletter tool built around a drag & drop (and code) email editor. Simpler than Mailchimp, more capable than the well-known open-source tools. It focuses on one thing: designing and sending newsletters that look right everywhere.
Makers, studios and teams who send a newsletter regularly and want it to look professional, without drowning in a marketing suite. Multi-tenant workspaces also make it a fit for agencies running several brands.
Sumezi is fully available in English, Dutch and German: the app, the docs and this website. Each template can have its own language, so you can keep a Dutch and an English version side by side and send each one to the right list or segment.
No. You build with blocks and switch to code mode in one click to see the compiled HTML. There's also a raw HTML block for edge cases. The block model stays the source of truth.
For individual pieces, use the raw HTML block. We don't recommend importing a whole existing email one-to-one. the strength of Sumezi is exactly the tested blocks that guarantee bulletproof output.
Yes. Personalization tokens are linked to your workspace subscriber fields. Drag them as a block or type them in text, with a clean fallback when a value is missing. Read more in the docs.
Every block is tested up front on Outlook (Windows) and the major inboxes. The compiler emits table-based layouts, MSO conditionals and VML roundrect buttons. A new component only ships after the same test.
Gmail clips emails over ~102 KB, which can hide your unsubscribe link. Sumezi warns you in the pre-flight check when a mail gets too large.
No. By default Sumezi sends for you, with your workspace name as the sender and your own address for replies. From Starter you can connect your own SMTP server and verify your own domain (SPF, DKIM, DMARC) under Settings, Deliverability, where ready-made DNS records are waiting.
Sign-in runs through SIMEZU (SSO). You click “Continue with SIMEZU” and come back into Sumezi. Password, email and sessions are managed in SIMEZU, not in Sumezi itself.
Subscriptions and payments run through SIMEZU. In Sumezi you see your plan and usage read-only, and the upgrade button takes you to the SIMEZU checkout. Read more on the pricing page.
Yes. Under Team & roles you invite people with a role (Owner, Editor or Viewer). Identity is managed by SIMEZU, but you do the inviting and role management right inside Sumezi.