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We've been notified that several core level infrastructure products are currrently experiencing network issues.

Amazon Web Services, BitBucket, Cloudfront, Vercel as well as our Independent Server providers all seem to be currently facing underlying issues.

We request your patience while we work with our vendors to understand when systems will be back up.

As of 10AM EST their services are still deprecated in certain parts of the US

11 powerful, read-only endpoints that surface the exact reason your performance dipped - before it snowballs.

We’ve shipped Smartlead MCP Diagnostics - a new set of 11 read-only endpoints that make debugging campaigns effortless.

What you can do now:

• Pinpoint deliverability issues without guesswork

• Spot lead quality problems before they hurt reputation

• Catch configuration errors before they impact performance

• Run pre-flight checks for new clients or high-volume sends

New diagnostic powers (highlights)

✅ Email account health checks

✅ Campaign performance deep dives

✅ Lead journey investigations

✅ Domain deliverability testing

✅ Webhook status monitoring

✅ Copy optimization analysis

…plus 5 more purpose-built endpoints for fast, confident troubleshooting

Why this matters

Most teams burn hours chasing symptoms. MCP Diagnostics gives you clear, actionable answers in one place - the fastest path from “something’s off” to “it’s fixed.”

See it in action

📺 Watch the full walkthrough ▶ https://www.loom.com/share/7d5a91d2da0246c1aaa0dff5b920d6c0

📖 Complete setup guide ▶ https://helpcenter.smartlead.ai/en/articles/300-smartlead-mcp-server

⚡ Command cheat sheet ▶ https://helpcenter.smartlead.ai/en/articles/387-smartlead-mcp-diagnostics-command-swipe-file

📉 Bounce rate down to 0.3%.

🚀 400+ bounce error codes eliminated.

💬 Higher reply rates & growing engagement.

🔥 6x faster MX blockers for a cleaner warmup pool.

✅ 25,000+ verified mailboxes for top-tier quality.

Check It Out

🔥 Warmup Updates

1. Copy refreshes every 6 hours with 10M+ variations.
2. New content includes sales, cold emails, and work-related conversations.
3. Enhanced validation: hourly DNS/MX checks, SmartVerify every 3-6 hours, and improved bounce management.
4. Dedicated SmartServers for warmup starts in 1.5 weeks.

🔒 Security Updates

1. One-click session logout for added safety.
2. 2FA via email OTP is now mandatory.

Stay secure and scale smarter!

We're live with our Office Hours for SmartDelivery.

Come join us for Inbox Impact Mondays!

Zoom Link to Join

We’re excited to announce a time-saving update that will streamline your campaign creation process! Say goodbye to the hassle of filling out a test creation form manually. Now, when you're creating a campaign, the details are automatically pre-filled for you.

In the final review step of campaign creation, simply click ‘Run Spam Test’, and all your test details will be pre-filled. All that’s left for you to do is confirm and run the test!

This new feature eliminates unnecessary steps and helps you save time, ensuring your campaigns are optimised and ready to go even faster. Try it out today!

We’re thrilled to introduce Mailbox Insights, a new feature that provides a centralised view of your mailbox performance during Smart Delivery Tests.

With this capability, you can now effortlessly access key metrics for all your mailboxes in one place, including inbox rates, spam percentages, and deliverability scores. This powerful tool helps you quickly identify low-performing mailboxes and take action to optimise your campaigns for better results.

Start leveraging Mailbox Insights today and ensure every email lands where it matters most!

750,000 tests in 4 days -> The Smartlead team has collected the most common questions you have on your deliverability score.

It's going to be indepth - and value packed -> join us live NOW -> Link

OPEN RATES are out. PLACEMENT RATEs are in! 🚀

So get ready to take the free deliverability tests and change your email game forever 💯

TEST NOW