TL;DR – Key Wins with Smartlead

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• 5M+ cold emails sent without burning domains or tanking deliverability.
• 2,000+ sales meetings booked for B2B clients across SaaS, agencies, and service firms.
• Inbox placement improved by double-digit percentages (from “spam tab roulette” → consistent inbox landings).
• Saved hours every single day that were previously spent firefighting deliverability issues.
• Campaigns scaled across multiple domains and inboxes simultaneously‍
• Boosted client confidence and retention by running predictable, AI-fuelled outbound machines.

Orestas Nariunas: Mastermind Behind A-Sales’ Cold Outreach

A-Sales isn’t just another outbound agency throwing cold emails into the void. They’ve carved out a reputation as one of Europe’s go-to demand generation partners. From SaaS startups to enterprise solution providers, the team at A-Sales has helped 200+ B2B companies scale their pipeline with sharp marketing, appointment setting, and outbound strategies. Their core promise is simple: get clients predictable growth without the fluff.

Let’s meet their VP of Accounts, Orestas Nariunas, self-described “cold-outreach maniac” who has personally fired off 5 million emails and spent 200+ hours tinkering in Clay to build hyper-personalized lead lists. He’s the guy who can spot a dodgy SPF record from a mile away and still manage to write an opening line that makes a Fortune 500 exec hit “reply.”

The A-Sales toolkit is as modern as it gets. Their modern stack includes Smartlead (cold-email engine), Clay (data enrichment wizardry), Airtable (campaign OS), Slack (instant lead alerts), and Orum for rapid fire cold calls. This combo lets their lean team punch far above its weight.

Cutting Through the Noise of Generic Outreach

Back in 2021, outbound felt like the Wild West. A-Sales could fire thousands of emails from a single Gmail account and land squarely in the primary tab. Easy wins, happy clients. But as more competitors blasted the same tired Apollo lists, inboxes got crowded and filters got ruthless. Suddenly, messages that once pulled a 40 % open rate were ghost-towning at 8 %.

Orestas noticed three pain points piling up:

1. Deliverability Whack-a-Mole – Each time they warmed a new domain, Gmail would move the goalposts. Some days they spent more time checking MX records than writing copy.
   
2. Scalability Bottleneck – Managing 20–30 client campaigns across half a dozen “okay-ish” email tools meant juggling logins like circus plates. Tracking bounces, replies, and positive leads felt like spreadsheet gymnastics.
   
3. Noise in the Market – Prospects were drowning in cookie-cutter outreach. Everyone was “just circling back” or “checking in” with the same generic messaging. A-Sales wanted to send fewer but smarter emails, powered by AI enrichment and killer personalization, without frying domain reputations.
   

They needed a platform that could:

• Rotate dozens (eventually hundreds) of inboxes without tripping spam alarms.
  
• Centralize monitoring so one dashboard showed deliverability health across every client.
  
• Plug into Clay and Airtable APIs for automated list building, instant Slack pings, and weekly reporting.
  

In short, A-Sales wanted to scale an AI-fuelled outbound machine that stayed laser-targeted and landed in primary inboxes, not Promotions. The search for a deliverability-first, agency-friendly cold-email engine began, and Smartlead was about to tick every box.

Smartlead Became the Perfect Fit for A-Sales’ Needs

A-Sales tried a few email tools, but Smartlead ticked every box on their wish list: one workspace for all clients, deep API access, and baked-in deliverability protections. Other platforms forced them into a one-client-per-workspace mess or charged extra for basic features. Smartlead, by contrast, felt purpose-built for agencies that live and breathe cold outreach.

Deployment, the short version:

1. Inbox rotation. Instead of hammering one sender address, Smartlead spreads volume across dozens of inboxes. Each address stays under safe daily limits, so no single domain looks suspicious.
   
2. Auto warm-up. Brand-new domains start gently, exchanging low-stakes emails inside Smartlead’s warm-up network until reputation is solid. No manual babysitting required.
   
3. Deliverability monitoring. Bounce rate, open rate, spam flags: Smartlead tracks the health of every domain in real time and pings the team if anything drifts into the danger zone.
   
4. Reply detection. When a prospect answers, the sequence stops automatically. No awkward double messaging, and engagement metrics stay healthy.
   

Workflow integration:

• Clay + Smartlead. Clay feeds enriched, personalized lead data straight into Smartlead campaigns. First-line snippets, company news hooks, you name it—it all arrives via API without CSV exports.
  
• Smartlead + CRM. Positive replies hit a Slack channel and update the client’s CRM instantly, so reps can call within minutes. Weekly stats auto-populate Airtable dashboards. Manual copy-paste work? Gone.
  

Real-world usage:

A-Sales typically spins up three domains per client, with five inboxes on each domain. All are warmed, rotated, and monitored inside Smartlead. That setup lets them send 4–6 thousand emails a day for a single client while each inbox only sends about 30 messages, plenty of volume, zero red flags.

When they launched a campaign for a FinTech SaaS client, 150 inboxes fired in sync: Smartlead handled the throttle and kept bounce rates under 1 percent. Meanwhile Clay kept the personalization fresh. The result was a flood of interested replies, a calendar packed with demos, and, most importantly, no domain blackouts.

Want to see how Smartlead keeps your domain reputation strong? 👉 [Book a demo] and kick the tires yourself.

A-Sales Sends Over 5 Million Emails Without Domain Burnout

Numbers first. Since switching to Smartlead, A-Sales has:

• Sent 5 million+ emails without a single domain burn-out.‍
• Booked 2 000+ qualified meetings for clients—roughly one meeting for every 2 500 emails sent, well above industry norms.
• Maintained inbox placement above 90 percent for core domains, up from roughly 75 percent on their previous stack.
• Cut average manual admin time by four hours a day. No more spreadsheet drudgery or late-night deliverability firefights.
  

Qualitatively, the team’s stress dropped just as sharply. The inbox manager no longer toggles twenty logins; the master inbox shows every reply in one clean view. SDRs trust that sequences will pause the moment someone answers, so they’re not worried about double-sending. Clients notice the difference too. Faster follow-ups and steady domain health translate to happier stakeholders and those sweet five-star ratings on Clutch.

Orestas’s personal highlight? Running that 150-inbox FinTech campaign. One month, 546 total replies, 169 positive, over 100 demos booked. All while he slept. He calls it “printing qualified meetings,” the modern outbound dream.

Case anecdote: A cybersecurity client needed U.K. enterprise intros fast. A-Sales set up three fresh domains, warmed them in Smartlead for 14 days, then unleashed a hyper-personalized sequence. In week one, 17 meetings hit the client’s calendar. Domain health stayed green the entire time.

The intangible win is confidence. A-Sales knows they can scale any client from 0 to thousands of emails per week without gambling on deliverability. That certainty lets them promise aggressive targets during sales calls.

If your team wants similar peace of mind, the path is clear. 

Smartlead handles the behind-the-scenes technical grind so you can focus on crafting messages that convert.

Curious what that feels like day to day? [Book your Smartlead demo] and start testing inbox rotation, warm-ups, and live health dashboards on your own domain.

Smartlead Solved Tech Issues, but A-Sales Mastered Personalization

Smartlead fixed the tech headaches, but A-Sales still had to master the human side of outbound. The first reminder came quick: good copy beats brute force. When a clever but generic template tanked, Orestas went back to hand-crafted first lines and saw reply rates rebound. Lesson one: personalization is not optional.

Next came list hygiene. Even a single dirty CSV can nuke a sender score. After a spike of hard bounces, the team instituted a never-skip rule: every list goes through verification before import. It takes ten minutes and saves days of damage control.

They also learned to respect sending limits. Yes, Smartlead throttles automatically, but volume greed is real. On one campaign they nudged daily sends higher than usual and watched open rates sag. Dialing it back restored deliverability within a week. Volume is great, but only inside healthy guardrails.

A-Sales now has checklists for everything: new-domain warm-up, copy QA, list vetting, twice-weekly health reviews. Readers, steal that insight: chase predictable systems, not random spikes.

Orestas’s Tips for Maintaining Domain Health

Looking ahead, A-Sales is leaning into AI-driven personalization. They already use Clay to scrape custom snippets, but next they plan to let GPT-powered prompts draft first lines on the fly, then A/B test them inside Smartlead. The goal is tighter relevance without adding headcount.

Multi-channel is next. Email still pulls the heavy load, yet LinkedIn DMs and light cold calling can nudge response rates higher. The plan: trigger a LinkedIn touch automatically when a prospect opens an email twice. Smartlead’s API makes that cross-channel handshake easy.

Orestas predicts that 2025 will reward teams who keep domain health front and center. Authentication, warm-up routines, real-time monitoring, ignore those and even genius copy never sees daylight. His advice: treat deliverability like product quality control.

Items in Orestas’s Wishlist:

• One view to monitor warm-up progress across all inboxes.
• AI-driven send-time suggestions.

 Otherwise, he says, “We’re already spoiled.”

Ready to Boost Your Deliverability? Start Here!

A-Sales proved that you can scale outreach without sounding spammy or torching domains. By pairing tight processes with Smartlead’s auto warm-up, inbox rotation, and live health dashboards, they grew smarter, not louder. The math is simple: healthy domains plus thoughtful automation equal predictable pipeline.

If your team is juggling deliverability checks, manual list uploads, and late-night spam scares, there is a faster path. Smartlead keeps your sender score safe while you focus on copy, offers, and closing deals.

If deliverability feels like a full-time job, Smartlead might be your shortcut. Start here.

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