Good news for WarmySender lifetime buyers: as an added benefit on your existing deal, Tiers 2–6 now include free LinkedIn accounts through our new browser extension.

• Tier 2: 1 LinkedIn account

• Tier 3: 2 LinkedIn accounts

• Tier 4: 3 LinkedIn accounts

• Tier 5: 4 LinkedIn accounts

• Tier 6: 5 LinkedIn accounts

How it works: install the extension for Chrome, Edge, Brave, Arc, Opera or Vivaldi from warmysender.com/linkedin-extension, then go to LinkedIn → Accounts → Connect → Run from your browser. It pairs with your account in a couple of minutes, with no code to type. Your campaigns send connection requests (with or without a note) and follow-up messages, and keep your LinkedIn inbox in sync, all from your own browser while it is open and inside the same safe daily limits and gradual warm-up as every account. Your LinkedIn login never leaves your browser.

Cloud seats stay available as an optional paid add-on for anyone who wants LinkedIn running 24/7 with the laptop closed, email and LinkedIn in one sequence, several LinkedIn accounts rotating in one campaign, or InMail and engagement steps.

Tier 1 can unlock the free extension by upgrading the tier on AppSumo.

Guide: warmysender.com/documentation/linkedin-browser-or-cloud-seat
Questions: warmysender.com/support

Hey there, Sumo-lings!

Quick one, and it's good news for everyone on License Tiers 1-3: you can now warm even more mailboxes than ever before.

License Tier 1: 40 warmed mailboxes (was 10), 40 cold mailboxes

License Tier 2: 40 warmed mailboxes (was 25), 100 cold mailboxes

License Tier 3: 70 warmed mailboxes (was 50), 200 cold mailboxes

It's already live on your account. No extra cost, no new code to redeem, nothing to change. Connect your mailboxes, switch warmup on, and WarmySender ramps each one up gradually inside safe daily limits.

On Tier 1 that means every mailbox you connect can now be warmed, so the inboxes you send from are the same ones you're warming.

Need a hand? Every setup step is in our guides at warmysender.com/documentation, and you can connect your AI agent at warmysender.com/ai-agents.

Thanks for building with us.

-Numan

Founder & CEO, WarmySender

We rebuilt the Unified Inbox in WarmySender. Live now for every tier:

• One feed for every channel — a new "All" view shows email replies, LinkedIn, Instagram and WhatsApp messages together, newest first, with a small mark on each row saying which channel it came from. Each channel still has its own tab.

• No more 50-conversation limit — the list keeps loading as you scroll, so older replies are always reachable.

• Search that finds people — type a name, email address, company or subject, on any channel.

• A cleaner Needs Reply — out-of-office auto-replies and spam no longer sit in the queue; closing a conversation clears it, and a new message from the contact brings it back.

• Built for teams — assign a conversation to a teammate, leave internal notes the contact never sees, and snooze a thread until a day you pick.

• Faster to work through — keyboard shortcuts (press ? in the inbox), quoted text folded away, conversations grouped by day, and a layout that works on your phone.

• Your AI agent can read the inbox — Claude, ChatGPT, Cursor and any agent that speaks MCP can list conversations, read one in full, file it and add notes. Reading never spends a sending limit, and nothing is ever sent on your behalf.

Open it at warmysender.com/inbox. How the inbox works and what it shows: warmysender.com/unified-inbox.

Hey there, A+ Sumo-lings!

Tier 5 took off faster than we expected, and the most common feedback we got was simple: more warmed mailboxes and more leads, please. So we built a tier around exactly that.

License Tier 6 is live now, and it’s exclusive to AppSumo Plus members.

You get:

• 400,000 emails per month
• 200,000 leads per month
• 50,000 email verifications per month
• 12 workspaces
• 12 members
• 500 warmed mailboxes
• 1,500 cold mailboxes

That’s double the emails, 4x the leads, and 2.5x the warmed mailboxes you get on Tier 5.

The feature set doesn’t change. Warmup, multi-step sequences, A-Z testing, Bounce Shield, the unified inbox, MCP, and API access are all included, just with a lot more room to run them.

Tier 6 is built for agencies and outbound teams sending at real volume who are tired of choosing between warming more inboxes and sending more emails. If you’re already on Tier 5 and bumping into limits, this is your upgrade.

Not a Plus member yet? Plus gets you 10% off every purchase site-wide and access to exclusive tiers like this one. Join Plus, then come back and grab Tier 6.

Thanks for all the feedback. It’s how this tier got built.

-Numan

Founder & CEO, WarmySender

P.S. Just for good measure, we also increased your warmed mailboxes count to 40 on license tiers 1 and 2. No extra cost, no catch... we're just happy to continue providing exceptional value to Sumo-lings!

Hey there, Sumo-lings!

A few of our biggest Tier 4 customers kept asking for more room to grow, so we built them more room.

License Tier 5 is live now, and it's exclusive to AppSumo Plus members.

You get:

• 200,000 emails per month
• 50,000 leads
• 24,000 email verifications
• 8 workspaces
• 8 members
• 200 warmed mailboxes
• 1,000 cold mailboxes

...roughly double what Tier 4 gives you.

Everything else stays the same: warmup, multi-step sequences, A-Z testing, unified inbox, and the rest of the feature set you already know.

This tier is just for teams running WarmySender at serious scale.

Not a Plus member yet? This is exactly the kind of thing you're missing out on.

Plus gets you 10% off every purchase sitewide, plus access to exclusive tiers like this one... so it pays for itself fast if you're buying tools regularly. Join Plus, then come back and grab Tier 5.

If you're already on Plus and outgrowing Tier 4, this is your upgrade.