Founder, Advazon
Email Deliverability + B2B Lead Generation Specialist

Rakibul
Haque.

I build outbound systems that actually land in inboxes and generate real pipeline. Not campaigns. Not templates. Engineered infrastructure that performs at scale for B2B businesses across North America, Europe, and Australia.

The Origin

The problem I kept seeing in every client account

"Good businesses losing deals not because their offer was weak, but because their emails never arrived."

Rakibul Haque, Founder
01 — The Pattern

Every client had the same invisible problem

Across hundreds of campaigns, the failure point was almost never the copy or the offer. Emails were landing in spam. Domains were blacklisted. Sending infrastructure was built on defaults that no one had ever audited. Businesses were doing outreach into a void and calling it a bad market.

02 — The Decision

I stopped treating symptoms and started engineering systems

Instead of writing better subject lines for broken infrastructure, I went deep on DNS architecture, domain reputation, mailbox warming, and deliverability testing. I built processes that validated inbox placement before a single send went live. That changed the results completely.

03 — The System

Advazon became the infrastructure layer most agencies skip

I packaged everything into a repeatable system: domain acquisition, SPF, DKIM, DMARC, warmup, ICP-validated lead sourcing, deliverability testing across Gmail, Outlook, and Yahoo, and multi-step sequences built for replies, not opens. That system is what clients hire today.

04 — The Scale

Now white-labelled by agencies across 3 continents

Agencies in North America, Europe, and Australia use Advazon as their backend delivery team. Clients never see my name. They see results under their brand. That is the outcome I am building toward: a scalable outbound infrastructure layer that operates invisibly and performs reliably.

Credentials and Results

The numbers behind the work

Upwork Freelancer Profile Top Rated Plus · Expert-Vetted Track
99%
Job Success Score
Top
Rated+
Upwork Status
7+
Years on Platform
5.0
Client Rating
Campaign Performance
200+
Campaigns delivered across 3 continents
47%
Average open rate on active campaigns
99%
Inbox placement rate after infrastructure build
14d
Average time from setup to first qualified reply
Markets Served

Global reach. English-speaking B2B focus.

🇺🇸 United States
🇨🇦 Canada
🇬🇧 United Kingdom
🇦🇺 Australia
🇩🇪 Germany
🇳🇱 Netherlands
🇮🇪 Ireland
🌍 + More
How I Operate

Built on principles,
not templates

Infrastructure First

No campaign goes live until the infrastructure passes a full placement test across Gmail, Outlook, and Yahoo. Domain health, DNS records, and blacklist status are confirmed before the first email is scheduled.

Outcomes Over Activity

Volume is not a metric I report on. What matters is qualified replies, meetings booked, and pipeline generated. Every campaign is scoped to a specific business outcome, not an email count.

Transparent Reporting

Weekly reporting on open rate, reply rate, bounce rate, domain health, and inbox placement percentage. Every number is tracked. Every drop is flagged before it becomes a problem.

Systems, Not Campaigns

A campaign ends. A system compounds. Every engagement is built to run, monitor, and scale without requiring manual oversight at every step. That is the Advazon difference.

No Surprises Policy

If something is going wrong, you hear it from me first, not from a drop in reply rate. Proactive communication is a standard, not a premium. Clients always know where their campaign stands.

Global Hours, Local Accountability

Based in Bangladesh, working night hours to serve US, UK, and Australian clients in real time. Time zones are not an excuse here. Response times and delivery windows are agreed upfront and met.

Career Journey

7 years of one
focused discipline

2017 — 2018

Started in B2B Email Marketing

Began executing cold email campaigns for early clients. Learned the hard way that deliverability was the real variable, not copy. Started auditing every domain and every sender before touching a sequence.

2019 — 2020

Specialized in Deliverability and Infrastructure

Deep-dived into DNS architecture, mailbox warming, email authentication, and inbox placement testing. Built the diagnostic framework that now underpins every client engagement at Advazon.

2021 — 2022

Expanded to LinkedIn Outreach and Lead Generation

Added LinkedIn outreach systems using Expandi and Dripify to the service stack. Integrated Apollo and Clay for ICP-driven lead sourcing. Started serving agency clients as a white-label backend.

2022 — 2023

Achieved Upwork Top Rated Plus with 99% JSS

Built a consistent track record across 200+ campaigns for US, UK, Australian, and European clients. Maintained a 99% Job Success Score. Recognized as a Top Rated Plus specialist on Upwork.

2023 — 2024

Founded Advazon

Launched Advazon as a full outbound infrastructure agency. Began offering white-label services to digital agencies, added CRM automation (GoHighLevel, HubSpot), and started building AI-assisted outbound workflows.

2025 — Present

Scaling Toward Enterprise and AI-Augmented Outbound

Integrating n8n and agentic AI into the outbound stack. Targeting Expert-Vetted status on Upwork. Repositioning Advazon for $10K+ client engagements with scalable, automated outbound systems for SMBs and enterprise.

Tool Stack

Tools I use daily
at production level

Cold Email and Sending
Smartlead
Instantly
Postmark
Mailreach
Warmy.io
Lead Generation and Enrichment
Apollo.io
Clay
ZeroBounce
Findymail
Prospeo
LinkedIn Outreach
Expandi
Dripify
CRM and Automation
GoHighLevel
HubSpot
Zoho
n8n
Infrastructure and Deliverability
Cloudflare
Google Workspace
Microsoft 365
GlockApps
MXToolbox
Mail-Tester
What I Stand For

Four things that are
non-negotiable in my work

01

No Fake Metrics

Open rates inflated by Apple MPP or bot clicks are not reported as wins. Every number I share is filtered for real human engagement. If a metric is misleading, I say so.

02

Client Domain is Sacred

Primary domains never touch cold email infrastructure. Every campaign uses purpose-built sending domains, configured, warmed, and isolated so the client's main domain stays clean no matter what.

03

White Label Means Silent

When I work under another agency's brand, I am invisible. No branding, no credit, no disclosure to the end client. NDA standard on every white-label engagement, no exceptions.

04

Long-Term Over Quick Wins

Domain reputation takes months to build and days to destroy. I will always recommend the slower, right approach over the fast, risky one. Clients who want corners cut find other vendors.

Work With Me

Ready to build a
system that delivers?

30 minutes. No pitch deck. I will audit your current setup and show you exactly what is breaking and what to fix first. No obligation to continue.

Response within 24 hours · Global clients welcome · NDA available