Forem: Neyab Ansari

Cold Email Deliverability 101: How to Stop Your Emails From Going to Spam

Neyab Ansari — Tue, 21 Apr 2026 14:59:34 +0000

If you have ever sent a cold email that went straight to spam, you know the frustration. You crafted the perfect message, built your list, hit send - and nothing.

I went through this myself. I set up a fresh domain, loaded it with leads, and sent out 300 cold emails on day one. Three days later, the entire domain was blacklisted. Gmail, Outlook, everyone blocked it. I lost $200 and weeks of work.

That experience taught me everything about email deliverability. Here is what I wish I knew before starting.

What Is Email Deliverability?

Email deliverability is the ability of your email to reach the recipient's inbox rather than the spam folder. It is not just about getting delivered - it is about getting delivered to the right place.

Major email providers like Gmail, Outlook, and Yahoo use complex algorithms to decide whether your email belongs in the inbox or spam. These algorithms look at several factors:

Sender reputation - How trustworthy is your domain and IP address?
Email authentication - Do you have SPF, DKIM, and DMARC set up?
Engagement rates - Do people open, reply, or mark your emails as spam?
Bounce rates - Are your emails reaching valid addresses?

The 3 Pillars of Cold Email Deliverability

1. Email Authentication (SPF, DKIM, DMARC)

Think of these as your email's ID card. Without them, email providers do not know if your email is legitimate or if someone is impersonating you.

SPF (Sender Policy Framework) tells email servers which IP addresses are allowed to send emails on behalf of your domain.
DKIM (DomainKeys Identified Mail) adds a digital signature to your emails, proving they were not altered in transit.
DMARC (Domain-based Message Authentication) tells email servers what to do if an email fails SPF or DKIM checks.

Setting these up takes about 30 minutes but makes a massive difference. Without them, you are sending emails from what Gmail sees as an unverified sender.

2. Domain Warm-Up

If you create a new domain and immediately send 300 emails per day, you will get flagged. It is like walking into a room full of strangers and shouting at everyone at once.

A proper warm-up schedule looks like this:

Week 1: 20-30 emails per day
Week 2: 40-50 emails per day
Week 3: 60-80 emails per day
Week 4+: Gradually increase to your target volume

Tools like Lemwarm and Instantly can automate this process by sending and replying to emails on your behalf, building your sender reputation naturally.

3. List Hygiene and Lead Quality

This is where most people fail. They buy cheap email lists filled with outdated, invalid addresses. Every bounced email damages your sender reputation.

Instead:

Use only verified, live emails
Avoid purchased lists entirely
Clean your list regularly to remove invalid addresses
Focus on targeted leads rather than volume

I now use live-verified leads scraped from Google Maps and verified in real-time. This approach has pushed my reply rates from 2-3% to 15-20%.

Common Mistakes That Kill Deliverability

Here are the mistakes I made so you do not have to:

Sending too many emails too fast - Start slow, build reputation first.
No authentication setup - SPF, DKIM, and DMARC are non-negotiable.
Using generic email content - Personalize your messages based on the recipient's business.
No unsubscribe link - Even cold emails should have an easy way to opt out.
Sending from personal domains - Use a separate sending domain to protect your main brand.

Measuring Success

Track these metrics religiously:

Open rate - Aim for 40-60%
Reply rate - Aim for 10-20%
Bounce rate - Keep it under 2%
Spam complaint rate - Keep it under 0.1%

If your bounce rate goes above 5%, stop sending immediately and clean your list.

Final Thoughts

Cold email is one of the most cost-effective channels for B2B lead generation, but only if you get the fundamentals right. The infrastructure setup might seem tedious, but it is the foundation of everything else.

Spend the time on authentication, warm up your domain properly, and invest in quality leads. Your reply rates will thank you.

If you have questions about cold email setup or deliverability, feel free to drop them in the comments.

I run a B2B lead generation platform that helps businesses find and verify leads for cold outreach. Check it out at nexuslead.live.

How I Built a Live Lead Scraper to Fix Cold Email Data Decay (and 5x My Response Rates)

Neyab Ansari — Mon, 20 Apr 2026 04:45:07 +0000

If you've ever done cold email outreach for local businesses, you know this pain:

You buy a list of leads, craft a perfect email sequence, hit send... and 30-40% of your emails bounce.

Not because your email copy is bad. But because the data is rotten.

This happened to me over and over. I tried Apollo, ZoomInfo, Lusha - all the big names. They work great for enterprise leads (VP of Sales at Fortune 500 companies), but for local businesses (dentists, clinics, real estate agents, local service providers), the data decays within days.

The Problem: Static Databases Can't Keep Up

Local businesses move fast. They change phone numbers, close, rebrand, or switch websites. A database snapshot from 30 days ago is already outdated. I was spending hours verifying emails only to find half were invalid.

My bounce rate was killing my sender reputation. My email service provider started warning me. I had to fix this.

What I Built

I decided to build my own system instead of relying on static databases. Here's the architecture:

1. Live Google Maps Scraping

Instead of pulling from a pre-built database, I scrape Google Maps in real-time. This gives me:

Current business name
Live phone number
Website URL (if available)
Address and hours
Reviews and ratings

Because it's scraped fresh every time, the data is as current as Google Maps itself. Bounce rate dropped to near zero.

2. Real-Time Website Scanning

Once I have the website URL, I run a quick scan to check:

Is the site live or down?
What tech stack is it running? (WordPress, Shopify, Wix, custom, etc.)
Is there an SSL certificate?
What tracking pixels are installed?
Is there an online booking/contact form?

This is where the real magic happens.

3. Tech Stack Detection = Hyper-Personalized Outreach

This was the game-changer. When I pull a lead, the system automatically detects what's missing from their website. For example:

WordPress site with no Facebook Pixel? They're running ads but not retargeting visitors. Pitch: retargeting setup.
No online booking system? They're losing appointments. Pitch: booking integration.
Missing SSL certificate? Google marks them as "not secure." Pitch: security/SSL fix.
No Google Analytics? They have zero visibility into their traffic. Pitch: analytics setup.

Suddenly, my cold emails weren't generic "I can do your marketing" templates. They became:

"Hey, I noticed your dental clinic website doesn't have a Facebook Pixel installed. That means you're losing every visitor who doesn't book immediately. I can set that up for you in a day."

My response rate went from 2-3% to 15-20%.

The Tech Stack

Here's what I used to build this:

Node.js - Backend for running the scrapers and API
Puppeteer - For scraping Google Maps and rendering JavaScript-heavy sites
Wappalyzer API - For tech stack detection
BuiltWith API - As a fallback for deeper tech analysis
Google Maps API - For official business data (when available)
React - Frontend dashboard for managing campaigns

What I Learned

Live data beats any database - No matter how big the database, real-time is always better for local businesses.
Personalization at scale is possible - Tech stack detection lets you personalize hundreds of emails without manual research.
The problem isn't the email - it's the data - Most cold email courses focus on copywriting. But if your data is bad, no amount of copywriting will save you.
Niche down - Local businesses are underserved by current lead gen tools. Everyone is fighting over enterprise leads.

Try It Yourself

I've packaged this into a tool called NexusLead (nexuslead.live) if you want to skip the building part and just start using it.

What's Next

I'm currently working on:

Adding LinkedIn profile detection for B2B contacts
Email verification layer before sending
Automated follow-up sequences based on website changes

If you're building something similar or have questions about the architecture, drop a comment below. Happy to share more technical details!

Have you struggled with data decay in your cold email campaigns? What approach worked for you?

Building a Micro SaaS for Email Follow-Ups: My Journey from Idea to Launch

Neyab Ansari — Sun, 19 Apr 2026 04:58:21 +0000

Building a Micro SaaS for Email Follow-Ups: My Journey from Idea to Launch

The Problem That Started It All

As a student juggling multiple projects and freelance work, I kept running into the same problem - I was losing track of follow-ups with potential clients. Emails would go unanswered, prospects would fall through the cracks, and I had no centralized way to know who I needed to follow up with.

I tried existing CRM tools but they were either too expensive, too complex, or required me to change my entire workflow. As a solo freelancer, I needed something lightweight that just worked.

So I decided to build it myself.

The Solution: NexusLead

NexusLead is a Micro SaaS I built specifically for freelancers and solo entrepreneurs who need a simple way to manage their email follow-ups without the overhead of enterprise tools.

Tech Stack

Here's what I used to build it:

Frontend: React for a responsive, component-based UI
Backend: Node.js with Express for the API layer
Database: MongoDB for flexible document storage
Email: Nodemailer with custom SMTP configuration
Hosting: AWS for reliable deployment
Authentication: JWT-based auth for secure user sessions

The Biggest Challenges

1. Email Deliverability

Getting emails into the inbox rather than spam was by far the hardest technical challenge. I spent days learning about:

SPF records to authorize my sending domain
DKIM signatures for email authentication
DMARC policies for domain-level protection

Without proper configuration, even well-written follow-up emails were landing in spam folders. This is something every developer building an email-focused SaaS needs to prioritize from day one.

2. The Cold Start Problem

Building the product was actually the easy part. Getting those first users was incredibly hard. I spent weeks:

Posting on relevant communities
Reaching out to potential users individually
Iterating on the product based on early feedback

The lesson: start building your audience before you even finish the product.

3. Feature Creep

My first version had way too many features. I kept thinking "what if users need this?" and adding things that nobody asked for. I learned to ship with the bare minimum and iterate based on actual user feedback.

What I Learned

Start small and validate fast - Don't spend months building. Ship something and get feedback.
Email infrastructure is harder than you think - Deliverability is a whole discipline on its own.
Community matters - The r/micro_saas and dev.to communities have been incredibly supportive.
Build in public - Sharing your journey attracts users who resonate with your story.

Current Status

NexusLead is now live and I'm actively working on getting my first paying users. If you're a freelancer struggling with email follow-ups, I'd love for you to check it out at nexuslead.live.

I'm also always open to feedback and collaboration. Feel free to reach out in the comments!

What challenges have you faced when building your own SaaS? I'd love to hear your stories in the comments.

I Built a B2B Lead Generation Tool for Freelancers - Here's What I Learned

Neyab Ansari — Sat, 18 Apr 2026 12:40:27 +0000

The Problem

Freelancers and small agencies spend an exhausting amount of time on client acquisition - finding leads, writing cold emails, tracking responses, and creating proposals. Most tools out there are built for enterprise sales teams, not solo operators.

I decided to build something different: a B2B lead generation tool specifically designed for freelancers and small agencies.

What I Built

After months of building, I launched NexusLead.live - a platform that combines:

Smart Lead Scraper - Extract verified emails and phone numbers from Google Maps instantly, filtered by location, niche, and rating
AI Email Personalization - Generate personalized cold emails using AI that actually get opened
Invisible Email Tracker - Real-time open tracking so you know exactly when to follow up
AI Proposal and Invoice Builder - Create professional proposals and Stripe-like invoices in seconds
Desktop App (Nexus Connect) - Run WhatsApp campaigns locally from your own IP address, significantly reducing spam flag risk compared to cloud-based bots

The Tech Decisions

One of the biggest technical challenges was the WhatsApp campaign engine. Instead of running everything on cloud servers (which increases flag risk), I built a local desktop runtime that executes campaigns from the user's own hardware and IP address. This mimics genuine human activity and keeps data local.

What I Learned

Start with the pain point, not the tech - I initially wanted to build with the coolest AI models, but the real problem was the workflow fragmentation
Free tier is essential for adoption - A free plan with meaningful features was the best way to get early users
Local-first architecture builds trust - Privacy-conscious freelancers prefer tools that don't send their data to the cloud

Try It Out

I'd love feedback from the DEV community! The free plan gives you 60 leads and 50 emails per month to test it out.

Check it out: nexuslead.live

Would appreciate any thoughts on the approach, feature set, or anything I might be missing!

Why Most Lead Generation Tools Fail (And What Works in 2026)

Neyab Ansari — Fri, 10 Apr 2026 14:00:29 +0000

If you’ve ever tried to find clients online, you already know the hardest part isn’t the work — it’s getting the right leads.

Like many others, I started with popular tools like Apollo.io. On paper, they look powerful. Millions of contacts, advanced filters, and all the features you could ask for.

But in reality, something felt off.

The Problem With Traditional Lead Generation

Most lead generation tools rely on large, pre-built databases.

At first, this seems like an advantage.

More data = more opportunities… right?

Not exactly.

After spending weeks using these platforms, I started noticing patterns:

Many businesses were no longer active
Emails bounced or received no replies
Some companies had already solved the problem I was pitching

In short, the data existed — but it wasn’t useful.

And that’s when I realized something important:

«Lead generation isn’t about having more data. It’s about having the right data at the right time.»

What Actually Works Better

Instead of relying on stored databases, I started experimenting with a different approach.

What if leads were pulled in real-time?

Instead of contacting businesses that existed months ago, I wanted to reach businesses that are active right now.

That’s when I began working with data directly from Google Maps.

And the difference was immediate.

Businesses were active
Contact attempts felt more relevant
Response rates improved

This approach made more sense — especially for freelancers and small teams who don’t have time to waste.

Going Deeper Than Just Emails

Another major limitation I noticed with traditional tools was the lack of context.

Getting just a name and email isn’t enough anymore.

To actually convert a lead, you need to understand:

What platform they’re using (WordPress, Shopify, etc.)
Whether they have proper SEO setup
What kind of online presence they have

This kind of insight allows you to personalize your outreach — which is what actually gets replies.

Building a Better Workflow

At this point, I wasn’t just looking for leads. I needed a system.

Something that could:

Find active businesses
Extract relevant data
Help me reach out efficiently

That’s what led me to build a small tool around this workflow.

It focuses on:

Extracting leads from Google Maps
Getting emails and social data
Identifying tech stack and website details
Allowing outreach directly from the same place

I called it nexuslead.live — a tool focused on real-time lead generation.

Why This Approach Works

The reason this method performs better is simple:

You’re targeting active businesses
You’re using real-time data
You’re reaching out with context

Instead of sending generic emails to outdated contacts, you’re connecting with businesses that are actually relevant to your offer.

The Cost Problem (And Why It Matters)

Another issue with traditional platforms is pricing.

Most of them use a credit-based system.

This means:

Every lead costs something
Scaling becomes expensive
You’re forced to limit your outreach

For someone trying to grow, this is a major bottleneck.

With the system I built, I wanted to remove that friction.

Instead of credits, the focus is on:

Predictable pricing
Enough volume to actually run campaigns
Freedom to experiment without worrying about cost per lead

Final Thoughts

Lead generation is evolving.

The old model of massive databases is slowly becoming less effective, especially for individuals and small teams.

What matters now is:

Fresh data
Better targeting
Faster execution

Whether you use an existing tool or build your own workflow, the principle remains the same:

«The closer your data is to real-time, the better your results will be.»

If you're experimenting with lead generation, I’d highly recommend trying approaches that prioritize relevance over volume.

It makes a bigger difference than most people expect.