Spectra
Opt-in forms inside Spectra.
Spectra builds on the WordPress block editor, so the EmailSendX blocks drop straight into a Spectra layout. Nothing extra to install, nothing to configure.
Setup
Live in about two minutes
Install the EmailSendX plugin for WordPress and paste your API key.
Edit a page. Spectra’s blocks and the EmailSendX blocks live in the same inserter — look for the EmailSendX category, or search “emailsendx”.
Insert “EmailSendX Form” or “EmailSendX Newsletter”, pick your form or list, and drop it inside any Spectra Container.
What you get
Made to feel native in Spectra.
Nothing extra to install
Spectra builds on the block editor, so the EmailSendX blocks already work inside your Spectra layouts. There’s no add-on to buy, install, or keep updated.
Spectra containers, our forms
Drop the form into a Spectra Container and use Spectra’s spacing and responsive controls on the outside, while our panels handle the form itself. Each tool does what it’s best at.
It picks up your brand colours
Pick a colour from your theme instead of typing a hex code. Change it later and every form on the site follows along — no hunting through pages.
What you see is what they get
The form you see while building your Spectra layout is the real thing — exactly what your visitors will see.
Styling
It should look like your site, not like a plugin
The block sidebar groups the controls into Layout, Fields, and Button & text — width, size, field spacing, outlined/filled/underlined fields, corner radius from square to pill, hidden labels for a placeholder-only look, and every colour.
Everything on the Block Editor page applies here, because these are the same blocks. Spectra simply gives you a richer container to put them in.
Layout
Fields
Button & text
Questions about Spectra.
Everything else operators ask before adding EmailSendX to Spectra.
There does not need to be. Spectra builds on the WordPress block editor, so the EmailSendX blocks already appear in the Spectra inserter and behave identically. Install the plugin and they are there.
Yes, and it is the recommended way to build a signup section. Use the Container for background, spacing and responsive behaviour, and the EmailSendX style panels for the form itself.
Spectra is the block editor, extended. If you are using Spectra you are already using the block editor, so nothing further is required.
Yes. The colour controls accept theme palette colours, including Astra global colours, and store the variable rather than a fixed hex — so the form tracks your theme instead of drifting away from it.
Still have questions?
Reply to any product email or drop us a note — answers come from the engineer who shipped the feature, not a triage form.
Start capturing subscribers from Spectra
Free to start. Bring your own Amazon SES and keep your sending costs — and your sender reputation — your own.