Cold Email Outreach

This template is a specialized AI agent, not another cold-email SaaS subscription. It builds a personalization angle for every lead from the record you already have, or one search per lead if you opt in. It writes a 40 to 75 word email, sweeps it for banned phrases and compliance lines, and shows you every draft before anything sends. Then it delivers from your own Gmail or Outlook and follows up in the same thread until someone replies.

This template acts as a starting point: open any agent and use 'Use AI' to help draft or manually update its instructions.

What it does: Researches each lead, writes and sweeps one personalized cold email per person, gets your approval, then sends and follows up from your own mailbox. Best for: Founders and small B2B teams, agencies, SDRs, and consultants running their own outbound. Apps used: Gmail or Outlook, Google Sheets, optional Instantly. Setup time: About 10 to 15 minutes to connect a mailbox and confirm your sender profile.

Verified from workflow config. Includes common failure modes and fixes.

Problem this solves

• Before: you stitch together a separate finder, a copywriter, a sending tool, and a reply tracker, or you adopt a whole new cold-email SaaS seat just to run outbound.
• Before: every cold email tool assumes you already have a personalization angle. Writing one for every lead by hand is the part that actually takes time.
• After: one agent takes a lead list you already have, builds the angle, writes the email, gets your sign-off, and sends from the mailbox you already use. No new subscription and no new inbox to check.
• After: replies and bounces get classified automatically and the Sheet stays current, so follow-ups go out on schedule instead of falling through a spreadsheet.

How do you build a cold email outreach agent yourself?

At its core, a cold email outreach agent needs six pieces working together: a lead source (a list of names, companies, and emails), a personalization step (something true and specific about each lead), and a copywriting layer with compliance rules baked in — word limits, an opt-out line, no spammy phrasing. It also needs a sending mechanism tied to a real mailbox, a reply and bounce detection loop, and an approval gate so nothing goes out unreviewed.

Building this yourself with Claude Code, Codex, or a custom script stack is entirely doable. You will write your own reply classifier (interested, not now, wrong person, bounce, out of office). You will write your own daily-send-cap and suppression logic so you don't email the same person twice. And you will write your own compliance sweep so a banned phrase or a missing opt-out line never slips through. That is real engineering work, and it needs upkeep every time your mailbox provider changes an API or a spam filter gets stricter.

Using a pre-built template swaps that build time for the setup time in the Answer Box above. If you don't have a lead list yet, pair this with the Lead Generator template, which writes leads into the exact Sheet format this agent reads.

Setup guide

When you click on 'Use This Template' you are taken to the agent canvas where all the skills needed for Cold Email Outreach Agent are already installed, just give them a few seconds to load. By default the required apps, such as sheets & gmail also come attached, all you need to do is connect your account on each.

Step 1: Connect your mailbox

From the Apps tab, connect either Gmail or Outlook. This connection is what the agent uses to create drafts, send approved emails, search for replies, and thread follow-ups on the same conversation.

Step 2: Connect Google Sheets and choose a lead source

Connecting Google Sheets is optional but recommended. It's what keeps a run trackable across conversations. The agent can read leads from a Lead Generator Sheet in its native 16-column format, any other Sheet mapped by header name, an uploaded CSV or XLSX file, a pasted list, or a single lead you describe in chat.

If you skip Sheets entirely, the agent still works from an upload or a pasted list. It just won't write status, replies, or last-touch data back anywhere for you to check later. If you don't already have a list, the Web Lead Extractor template can build one. It doesn't verify emails, though, so treat any addresses it finds as a starting point to confirm, not a guarantee.

Step 3: Confirm the sender profile and answer the one setup question

On first run, the agent reads your connected files and drafts a sender profile: your name, company, offer, proof points, signature, and opt-out line.

It then asks everything else it needs in one batched question: your send mode (draft, send, or Instantly), your personalization mode (build angles from the record for free, or spend one search per lead), your lead source, whether to enable an optional weekday reply check, and your timezone if it isn't obvious.

Step 4: Test with a small batch and review the approval gate

Run a batch of 5 to 10 real leads and watch the agent build packets, write emails, and run its own compliance sweep before showing you anything. You'll see an 8-column preview table (name, company, step, subject, opening line, angle, and source) plus up to five full emails. Nothing sends until you approve, approve some, or ask for revisions.

Step 5: Turn on the weekday auto-check and go live

If you want replies and due follow-ups handled without starting a new conversation every morning, accept the optional weekday check during setup. Each run checks for replies and bounces first, then updates your Sheet and ledgers. It then sends, drafts, or asks about due follow-ups, depending on the mode you chose. This appears as its own conversation under Runs, and you can cancel it from the Schedules page. If your outbound volume grows past what a single mailbox's daily cap supports, this is also the point to enable Instantly: connect an API key and tell the agent to switch send modes.

Common issues

• Daily cap confusion: the default is 15 sends per day per mailbox with a hard ceiling of 20; if a batch looks smaller than expected, check whether you're near the cap.
• Instantly staying off: the Instantly tool node ships disabled by default; it only activates once you enable it, connect an API key, and tell the agent to switch send modes.
• A lead has no email: the agent flags it as skipped rather than guessing an address, since it does not find or verify emails on its own.
• Sheet not connected: the run still completes from an upload or pasted list, but status, replies, and last-touch columns won't be written anywhere.
• An email gets skipped twice: the copy sweep checks every draft against a banned-phrase and formatting list; a record that fails the sweep twice in a row is skipped rather than sent with a violation.

Customization knobs: daily send cap, follow-up cadence (default day 3 and day 7, up to 3 touches), send window (default weekdays 08:00 to 18:00 in your timezone), and research mode (record-only or one search per lead).

Who it's for

• Founders and small B2B sales teams running their own outbound, who want research, copy, sending, and reply tracking in one place instead of a finder, a writer, and a sender stitched together.
• Agencies running cold outreach for clients, working from a client's own Sheet mapped by header name rather than a fixed format. Note: this template supports one mailbox per run, so running several clients in parallel means one agent instance per client mailbox, not a single shared setup.
• SDRs and growth marketers who want the full research-to-follow-up loop in one agent instead of paying for a separate finder, writer, sender, and tracker.
• Freelancers and independent consultants doing their own business development, who can run this from a personal Gmail with a pasted list or a single described lead and no Sheet at all.

What the agent does

This template can:

• Build a personalization packet for every lead from the record it already has, or from one web search per lead if you choose that mode.
• Write one specific cold email per lead, 40 to 75 words, with an observation, why it's relevant, and one easy ask.
• Run a compliance and banned-phrase sweep on every draft before it's ever shown to you.
• Show an approval-gate preview with an 8-column table and full email text, and wait for your sign-off.
• Send or draft emails through your connected Gmail or Outlook, or queue them to Instantly for higher volume.
• Thread every follow-up on the original conversation instead of starting a new subject line.
• Detect and classify replies, bounces, and out-of-office messages, and take the matching action.
• Draft replies to interested leads for your review, never auto-sending a reply on your behalf.
• Enforce a daily send cap and a one-person-per-company suppression rule so you never double up.
• Keep your Sheet and ledger current, writing back status, subject, last touch, and reply data after every delivery.

How it works

1. You give the agent a lead list: a Sheet, an uploaded file, a pasted list, or one described person.
2. It builds a personalization packet per lead, free by default from the record, or with one search per lead if you opted into that mode.
3. It writes and sweeps every email, then shows you a preview table and asks for approval.
4. On approval, it sends or drafts through your mailbox, or queues the batch to Instantly, logging every touch to your ledger and Sheet.
5. On later runs, whether you start one manually or the optional weekday check fires, it looks for replies and bounces first. It updates your records, then sends any follow-ups that are due. The sequence stops the moment anyone replies.

Requirements

To run this template, you need:

• One connected mailbox: Gmail or Outlook, not both.
• A lead list from somewhere: this agent does not source or find leads on its own; if you ask it to prospect for you, it will point you to the Lead Generator template instead.
• Google Sheets (optional): recommended so status, replies, and follow-ups are tracked automatically instead of only living in the conversation.
• An Instantly API key (optional): only needed if you plan to send at volume beyond a single mailbox's daily cap.

Nothing else is required to run the core flow. If you later want to connect a CRM or another tool to this workflow, SketricGen's library of 2,000-plus apps covers most of what you'd want to bolt on beyond what ships here.

Apps used

Use cases

First outbound batch from a cold Gmail Connect a fresh Gmail, confirm your sender profile, and send your first 10-lead batch with the default 15-per-day cap. Best for: founders and small teams sending their first real outbound batch.

Running outreach from a client's own Sheet Point the agent at a client's existing spreadsheet, mapped by header name instead of a fixed format, and keep that client's ledger separate from any other. Best for: agencies running cold outreach for one client account at a time.

Replacing a five-tool stack with one agent Skip the separate finder, writer, sender, and tracker subscriptions and run the whole research-to-follow-up loop through one conversation. Best for: SDRs and growth marketers consolidating their outbound stack.

One described lead, no Sheet Describe a single prospect in chat and get a personalized email drafted and sent from your own Gmail, with no spreadsheet setup at all. Best for: freelancers and consultants doing occasional, informal outreach.

Weekday reply and follow-up check Turn on the optional recurring check so replies and due follow-ups get handled every weekday morning without starting a new conversation yourself. Best for: anyone already sending who doesn't want to remember to check for replies.

Example prompts and outputs

Example prompt (first run):

"I have a Google Sheet from the Lead Generator with 40 leads in it. Draft emails for the first 10 and show me before sending anything."

Example output (one email from the preview batch):

Subject: Quick note on your London office

Hi Priya,

Saw Acme opened a London office this month. New regions usually mean a new outbound list to build from zero, which tends to land on reps who should be on calls instead.

Worth a 15-minute look at how we handle that list-building step for teams in a similar spot?

Best, Jordan

[opt-out line and postal address per your profile]

This example follows the template's real word-count and structure rules (observation, relevance, one easy ask) rather than a generic pitch.

Why you need this template

• No new subscription: it runs on the Gmail, Outlook, and Sheets you already have, not a separate cold-email SaaS seat.
• Compliance is built in, not bolted on: every draft carries an opt-out line and passes a banned-phrase sweep before you ever see it, so you're not learning email compliance rules from scratch.
• Nothing sends without you: the approval gate means every batch, and every touch in a sequence, gets your sign-off first.
• Replies never get missed: the optional weekday check catches replies and bounces and keeps your Sheet honest even on days you don't open the conversation yourself.
• It's a starting point, not a fixed script: open the Outreach Agent and use Use AI to adjust its instructions as your offer or tone changes, without waiting on a new template release.