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A rich editor for your email templates

Write template-campaign emails in a proper editor — formatting, one-click merge tags with search, a slash menu, and built-in link, compatibility, and spam checks.

Plain textareas are fine until you need a bold line, a list item, or a merge tag you can actually see before you send. Template-campaign emails now open in a proper editor — built for cold outreach, so it stays light enough to keep your deliverability intact while giving you the tools to write and verify personalized emails efficiently.

What's new

  • Formatting that survives the inbox — bold, italic, underline, lists, and headings are all supported, kept deliberately lightweight for cold email. The editor doesn't encourage heavy markup because heavy markup triggers spam filters and renders inconsistently across email clients. The available options are the ones that work.
  • Merge tags you can find — insert any contact field from a searchable dropdown with a live filter, or pull one in directly from the slash menu. Tags appear as clean chips in the editor so you can see at a glance which fields are present and where — then send as standard merge-field syntax that your contact data fills in at delivery time.
  • A slash menu — type / anywhere in the body to drop in a heading, list, divider, link, or merge tag without leaving the keyboard. For writers who prefer to stay in the flow without reaching for a toolbar, this keeps composition fast.
  • Checks while you write — a link and compatibility check flags anything that may not render consistently across major email clients, and a spam lint offers advisory nudges about phrasing that commonly triggers filters. Both are guidance only; they never block saving or sending. You stay in control.

Built for deliverability, not just appearance

The editor outputs simple, well-supported HTML and maintains a plain-text version of every email automatically, so your messages stay readable everywhere — including email clients that display plain text by default or where rich HTML is filtered. The goal is a tool that feels like a proper editor while producing email that behaves like clean plain text under the hood. Rich formatting in the editor does not mean heavy markup in the inbox.

Why it matters for personalized outreach

Personalization at scale only works when merge tags are easy to insert, easy to verify, and hard to break. In a plain textarea, finding the right field name means remembering the exact syntax, typing it correctly, and hoping the field is populated for every contact on your list. A mistyped field name renders as a broken placeholder — {{companyname}} instead of {{company_name}} — and that broken placeholder reaches every prospect before you notice.

The searchable tag picker closes that gap. You pick the field from a list of the actual fields available on your account, the chip appears in the editor so you can see it in context, and the compatibility check catches rendering issues before you save. The result is fewer broken variables reaching inboxes and less time spent auditing templates before launch.

What you should do

Open any template variant in a campaign and start typing — the editor is already there. Existing plain-text templates open straight into it with their content intact, and your merge tags keep working exactly as before. No migration, no reformatting. If you previously worked around the plain textarea by copying field names from a reference list, the searchable picker replaces that step entirely.

All updates

Outreach that keeps going after you log off.Leads, emails, follow-ups and replies, handled.

Connect unlimited mailboxes and let AI agents find leads, write each email and follow up. Or send your own templates in manual mode. From $29/mo.

$1 for 3 days · Cancel anytime · No contract

Install with AI

Your coding agent sets up the FirstSales CLI and skills for you.

Prompt for Claude Code

I'm setting up FirstSales (https://firstsales.io), an AI outbound sales platform: campaigns, contacts, a reply inbox, deliverability and lead signals. Help me get my workspace sending real, good emails end to end, from Claude Code.

Read these first so you know how FirstSales works:
- Developer docs and API: https://developer.firstsales.io
- CLI: https://www.npmjs.com/package/@firstsales.io/cli
- Skills for coding agents: https://github.com/firstsalesio/firstsales-skills (read README.md and GUIDE.md)

Setup
1. Install the CLI: npm install -g @firstsales.io/cli
2. Install the FirstSales skills:
   claude plugin marketplace add firstsalesio/firstsales-skills
   claude plugin install firstsales@firstsales
3. Ask me if I already have a FirstSales account. If not, send me to https://app.firstsales.io to sign up.
4. Ask me to create an API key under Settings → API → API Keys, with only the scopes we need.
   Never ask me to paste the key into this chat. Tell me to run this in my own terminal, so the key stays hidden:
   read -rs FS_KEY && firstsales auth login --api-key "$FS_KEY"; unset FS_KEY
5. Run `firstsales whoami` and tell me which workspace and organisation we are connected to.

Then ask me about my business: what I sell, who I sell to (roles, company size, countries), my best customers, and what I use today for outbound (tools, lists, mailboxes). Walk me through:
1. Teaching FirstSales my business: website, offer, proof points and case studies in the knowledge base, so the AI writes like someone who knows the product.
2. Connecting my sending mailboxes and checking my sending domain: SPF, DKIM, DMARC and warm-up. If anything is unhealthy, tell me the exact DNS record to add.
3. Bringing in contacts: import my CSV or CRM export into a clean list, remove duplicates and bad emails, and block domains I must never email (customers, competitors, my own).
4. Building my first campaign: the right list, senders, steps and timing. Write the sequence with me, show me the drafts, and do not launch until I say yes.
5. Setting up Signals if it fits: find people engaging with LinkedIn posts about topics my buyers care about, and turn them into leads.
6. Inviting my team and giving each person the right access.

Once campaigns run, show me how to work the reply inbox from here: which replies need an answer, draft responses in my voice, and move good conversations into deals. If I use Cal.com, connect it so follow-ups can offer my booking link (not the first email).

Throughout, as you learn about my business, proactively suggest and help create:
- Reply templates for the questions and objections my prospects are likely to raise, based on my product, site and codebase if you can see them.
- Campaign ideas and segments worth testing, with the reason for each.

Safety rules:
- Show every change as a dry run (--dry-run) first and wait for my yes. Never send emails, launch campaigns or delete anything without my yes.
- Tell me before anything that spends credits, and how many.

Be opinionated. If the docs give a sensible default, just use it. Don't make me choose between five options.