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Cold Email.
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Lead Gen.

No theory. No filler. Everything here comes from diagnosing and fixing real outbound systems across hundreds of B2B campaigns.

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COLD EMAIL
Cold Email

Cold Email Infrastructure Setup: SPF, DKIM, DMARC, and Domain Warmup Explained

Before you send a single cold email, your infrastructure must be airtight. This step-by-step guide covers SPF, DKIM, DMARC, secondary domains, inbox rotation, and domain warmup…

May 2026 Read →
COLD EMAIL
Cold Email

The Apollo + Clay + ZeroBounce Stack: How to Build a B2B Lead List That Actually Converts

The difference between a 2% reply rate and a 12% reply rate is almost never the email copy. It's the list. Here's the exact Apollo +…

May 2026 Read →
COLD EMAIL
Cold Email

Why Your Cold Email Open Rate Dropped — And It's Not the Subject Line

If your cold email open rates suddenly dropped, the subject line probably isn't the problem. Here's what's actually killing your deliverability — and how to fix…

May 2026 Read →
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Verified Client Reviews

What Clients Say
After the Work.

★★★★★86% Open Rate

We are finally getting real conversations and real downloads. Advazon built a cold email engine that reached 20,000+ attorneys with an 86% average open rate.

N
Nick
Founder · Vikk.ai · LegalTech SaaS
★★★★★Upwork Verified

Advazon set up our entire cold email infrastructure from scratch. Our inbox placement went from around 40% to 94%+ and reply rates jumped to 8.4%.

JS
Jason Simmons
Founder · DeadSoxy
★★★★★LinkedIn Verified

I was exceedingly impressed by their adept management of LinkedIn campaigns. Their strategic approach to building contact lists significantly boosted our results.

LI
Lindsey Imperatore
President · CREtech
★★★★★LinkedIn Verified

I wholeheartedly endorse them for exceptional lead generation services on LinkedIn. His expertise and unwavering commitment have significantly enhanced our outreach endeavors.

ER
Ellen Rudolph
Co-founder & CEO · WellTheory
★★★★★LinkedIn Verified

Rakibul is the best lead gen expert that I have ever worked with. He is easy to work with, friendly and always delivers quality, in good time.

GJ
Guy Jackson
The Scale-up Launchpad · Investor
★★★★★LinkedIn Verified

His expertise in using LinkedIn and email outreach was invaluable in generating high-quality leads for us. Communication was excellent every step of the way.

DE
Daniel Eskandar
Founder · Dartera / Akquire
★★★★★3+ Year Client

I have worked with Rakib for over three years because he exemplifies reliability, efficiency, and quality. Highly recommend.

RC
Ransley Carpio
Consumer Brands · ex-L Catterton
★★★★★99% Data Accuracy

I hired Advazon for two urgent research projects. Very quick, very responsive, and my data had 99% accuracy — very impressive for lead gen.

AH
Angela Hamilton
SDR Ops & Enablement Leader
★★★★★LinkedIn Verified

Rakib was instrumental in helping my team enter a new customer segment. Highly responsive, receptive to feedback, and delivers projects quickly and accurately.

KG
Kathryn Gissiner Treser
Chief of Staff @ LinkedIn