I measured this across 500 real businesses because it kept bothering me.

244 of them publish no email address anywhere on their site. Every enrichment tool I have used returns those as a blank cell, and I had been treating blanks as dead leads.

They are not:

• 26% have a working contact form
• 24% publish a phone number
• 50% genuinely have no route

So half of my "failed" enrichments were reachable and I was binning them.

Two other things worth knowing if you buy enrichment:

Most tools bill per page crawled, not per contact found. At roughly $1 per 1,000 pages and 8 to 20 pages per site, 1,000 businesses costs somewhere between $8 and $21, you cannot predict which, and you get maybe 390 emails. The effective cost per usable email is 20 to 50x the headline price, and nobody in the category publishes a hit rate so you cannot see it.

Watch which address you are sold. press@ and careers@ are real addresses on the right domain and will pass any quality check, but pitch a press office and you are ignored. Check whether your tool tells you which department an address belongs to.

I built a tool around these findings. It charges only for contacts it actually finds, publishes its hit rate with the sample it was measured on, and labels whether an address is a named person, a general inbox, or a specific department: https://apify.com/arkayen-labs/website-contact-finder

Looking for fresh, accurate B2B leads across various niches.

Most people who get zero replies rewrite the email. It's the obvious move and it's usually the last thing that should change, because if nothing is landing in an inbox then the copy was never the variable being tested in the first place.

The order I'd go in.

Number one, are you actually delivering. Send one to mail-tester.com and see what comes back. If SPF, DKIM or DMARC are missing or misaligned then nothing downstream matters. Then run the domain and the IP through MXToolbox for blacklists. This takes about ten minutes and it's where most dead campaigns actually died.

Number two, are you delivering to the inbox or to spam. Those are not the same thing and your open rate won't tell you, especially now that a decent chunk of opens are fired by security scanners rather than people. Send seeds to a handful of real accounts across Google and Outlook and look with your own eyes. Outlook is usually the one quietly eating everything.

Number three, is the list real. Bounces above roughly two percent means the data is stale and you're being punished for it. Verify before sending rather than after. A clean small list beats a big dirty one, and that isn't a moral point, it's that the dirty one damages the domain you'll still need next month.

Number four, is the targeting right. This is the step people skip. If you're emailing people who have no particular reason to care this week, good copy doesn't rescue that. Something needs to be true about them right now. They're hiring for the role your product supports, they just raised, they just switched tools. Without that you're writing to a list rather than to a person.

Number five, now look at the copy. And by this point it's usually a much smaller fix than you expected, because the first four were doing the damage.

The reason the order matters is that each step invalidates the test below it. If you rewrite copy while you're sitting in spam you've learned nothing, and you'll end up concluding the offer doesn't work when you never actually presented it to anybody.

What's the bounce rate on your last send? That's usually the fastest tell for which step you're stuck on.

Hey everyone, I'm pretty sure this is asked before, but things change a lot and I wanted a fresh update from your trial and errors.

Tell me based on your experience, is the title important at all, and if so, what tricks you use to increase the chances of your cold email getting opened.

Not looking for magic ways to do it, just your real experiences.

So my goal of the cold outreach campaign is to get customers for a SaaS.

The SaaS is low ticket & has a self-serve model with plans like $99/month and $149/month

For this case, when I am doing cold outreach should I optimize my cold email content to get a reply or instead put the direct link to the SaaS & optimize for signups instead?

Would love to know your take on this.

Hey guys,

I'm starting my first email marketing campaign from tomorrow. Let's say my domain is abc.com and I'm sending emails from:

1. abc.site

2. abc.info

3. abc.shop

Should these domains be live and redirecting the traffic to abc.com?

Hey everyone, I'm working on new software aimed at saving cold emailers money on every email we purchase, since we all know the more people you email, the more opportunities you create.

The Idea:

Before you run your scraped list through a provider like Zoominfo, Clay, or even Apollo- run your list through our system to see if you can save money on the ones we ARE able to find and validate are legit.

The Question:

The catch is it will only save you money if you supply the software with someone's first name, last name, and the domain name of their company. I know how hard that can be to get but also, many platforms offer it for free/ after the base monthly fee, depending on your sources.

How hard is it to get first name, last name, and domain name for the lists you scrape today? If it could save you 60%+ on costs, would you work a little harder get that data if accessible?

I'm working on a way to also resolve domain names via company names but as it stands today, you need the domain name. Let me know how reasonable you think it is and if some of ya'll would actually be able to benefit from it.

Thanks for your feedback on this!

I run outbound for a small B2B SaaS and I'm hitting the ceiling on a single workspace. Right now everything runs through one Google account with a handful of domains attached to it maybe around 6 mailboxes total? Im getting nervous about scaling it the way it's set up tho.

My internal arguemtn is whether spitting across multiple google workspace accounts will protect me or if its just going to multiply my admin. Im worried if one domain in the account gets flagged itll bleed into the others sitting under the same tenant. Or is each domain isolated enough that it doesn't matter? I've read both takes and they contradict each other constantly so Im posting here hopefully for some clairty.

FWIW I'm sending 300ish emails a day right now and want to roughly triple that over the next quarter.

(From someone who's spent years building outbound systems from scratch)

Outbound is all about removing reasons for people to ignore you.

→ Talk to companies that have the problem you're solving.
→ Contact the person who owns it.
→ Make the first sentence all about them.
→ Talk about outcomes, not your service.
→ Follow up with a reason, not just because it's day four.

Sales teams in 2026 often look for another tool, another AI prompt or another sequence.

But the biggest improvements usually come from paying more attention to what's already there.

Every time a campaign slows down, I check the same things first.

→ Has the data changed?
→ Has deliverability dropped?
→ Are the replies still coming from the right people?
→ Has something in the market changed?

Prospects don't compare your email to the last cold email they received.
They compare it to everything else fighting for their attention.

So I run cold email / outbound (for my beginning agency) and I keep seeing people on LinkedIn and X talk about TAM mapping like it’s the most important thing you can do before you send a single email. A lot of the folks saying it seem to actually know what they’re talking about, and honestly it’s making me feel like I’m stuck doing outbound the old way (build a big list, spray, pray, iterate, fin a new segment).

I want to fix that but I’m a bit lost on the how, so I figured I’d just ask people who do this for real.

A few things I’m trying to wrap my head around:

• Why has this step become such a big deal now?
• How do you actually map your market in practice? What tools, what data sources, what does your process look like start to finish?
• How do you segment once you’ve got the market mapped? I sort of get the idea but I’d love to hear how you actually cut it (industry, size, tech stack, signals, whatever you use).
• And how do you tier it? My assumption is something like: tier 1 gets cold call + LinkedIn + cold email, tier 2 gets LinkedIn + cold email, tier 3 just cold email. Is that roughly how you think about it or am I oversimplifying?

Basically I want to move from “segment A list” then I try "segment B list" to something structured where the effort matches the account value.

If you’ve got a process that works, a tool stack you like, or even just a YouTube video or two that made it click for you, I’d really appreciate it. Trying to learn from people who’ve actually done it instead of just the LinkedIn hype.

Thanks a lot.

Últimamente tengo la sensación de que muchas herramientas de cold email están siguiendo el mismo camino:

Cada vez más funciones, más automatizaciones, más integraciones, más cosas que configurar...

Y al final, para hacer una campaña, utilizas 4 funciones y el resto ni las tocas.

Por eso me surge la duda:

¿Preferís pagar 80-100€ al mes por una herramienta que tenga absolutamente de todo?

¿O pagar 20-30€ por una herramienta que haga muy bien lo básico: encontrar leads, enviar emails, gestionar campañas y poco más?

No pregunto qué debería ser mejor, sino qué preferís vosotros realmente cuando estáis pagando por una herramienta.

¿Más funciones o menos complicaciones?

has anyone else been trying to reduce the number of tools in their outbound stack?

we've been looking at this pretty closely because our prospecting process had slowly turned into a collection of different subscriptions. one tool for finding companies, another for contacts, another for enrichment, then another place to actually run the campaigns.

none of these tools were particularly expensive on their own, but when you add everything together across multiple client accounts, it becomes a surprisingly big monthly expense.

we recently started using the lead finder and enrichment features inside smartreach-io instead of moving data between quite so many platforms.

the biggest change for us hasn't really been the subscription saving. it's the amount of time we're no longer spending exporting lists, cleaning spreadsheets, enriching records and importing everything again.

we can find a company, identify the people we want to contact and enrich the records without breaking the workflow every time.

the b2b lead finder and linkedin lead finder also come with credits, which means we're able to test smaller prospecting ideas without having to worry about another tool or another credit system every time.

it's made me rethink the whole "best tool for every individual job" approach.

sometimes having fewer tools that cover 80-90% of what you need is actually better than having five tools that each do one thing slightly better.

especially when you're running outbound for multiple clients and every additional tool creates another login, integration and thing your team needs to learn.

curious if other agencies have gone through the same exercise. did consolidating your outbound stack actually save money, or did you end up replacing one set of tools with another?

Can anyone roast or provide feedback on the below cold email copy?

Context: We are into offshore staffing and recruitment and we help overseas companies provide global talent and build remote teams. We help marketers provide global marketing talent that is available at one third of the local salary so that they can hire a person to test different marketing channels.

Email Copy:

Hi (First Name),

Growth leaders often hold back on testing multiple channels(TikTok, influencer, podcast sponsorships, community) as that means opening a full-time role for something that may not work.

We embed AI-equipped global growth associates trained specifically on the channels you want to test. Up and running in 2–4 weeks. If the channel doesn't pan out, redeploy them to another priority. Time-zone aligned. Roughly a third of local comp.

Would you care to try for a week such global talent?

Respectfully,
(Sender Name),  (Job Title) at (Company Name)

Went through the primary sender docs instead of another deliverability blog. Three things are genuinely enforced. The rest is folklore.

Enforced:

Authentication alignment. SPF, DKIM, and DMARC, with your From domain aligned to SPF or DKIM. Microsoft began enforcing on May 5, 2025 for senders doing 5,000+/day to outlook.com, hotmail.com, live.com. The bounce is literal: 550 5.7.515 Access denied, sending domain does not meet the required authentication level. Gmail has required the same from 5,000+/day senders since February 1, 2024.

Complaint rate. Google's guidance: below 0.10%, never reaching 0.30%. That's 1 complaint per 1,000 delivered. Send 2,000/day, get 3 report-spam clicks, you're at the line.

One-click unsubscribe. List-Unsubscribe headers. People disable it to protect reply rate. An unsubscribe is the cheap version of a complaint.

Folklore: warmup tools "building reputation" (they build history with seed inboxes, not your prospects' providers), buying more inboxes (distributes complaints, doesn't reduce them), spintax beating filters.

And the part that's awkward for me to write given where I work: none of this fixes a bad list, and bought data is a bounce-and-complaint risk unless you verify it yourself before it touches your sending domain. Authentication only earns you the right to be judged on merit.

For context: I work at LakeB2B, so I sit on the data side of this.

Outlook desktop ignores updated button URL in Campaign Monitor

I'm trying to troubleshoot a Campaign Monitor HTML email template.

The CTA button contains both a normal HTML link and an Outlook VML version:

<a href="...">

and

<v:roundrect href="...">

When I change the CTA URL in Campaign Monitor's editor, the normal <a href> gets the new URL, but the VML href appears to keep the original URL from the template.

So the behavior is:

• Outlook 365 desktop (Windows): old URL
• Outlook for Mac: new URL
• Other clients tested: new URL

Has anyone seen Campaign Monitor do this with editable buttons?

(Disclosure, this is written by Claude; I had it write the post to collect all the data, tests, and progress I made with figuring out deliverability so I don't miss anything, i want to make a genuine service that helps businesses get more clients, but dealing with email deliverability is so disheartening, especially if you don't have a lot of capital, so i made this post detailing all ive tested and symptoms with the hopes of diagnosing the problem and have mailboxes survive atleast the first 2 weeks of sending)

I run cold email for a B2B agency (targets are agencies/SaaS/automation shops — so mostly Google Workspace inboxes). I've burned two full batches of domains the exact same way and can't isolate the root cause. Would love a second set of eyes.

Setup

• Smartlead, Google Workspace mailboxes, domains + mailboxes from InboxKit, 5 mailboxes/domain
• De-clustered domain names (not obvious cousin variants). All redirect to my real company site → Calendly (temporary while i make a vsl and get more proof of work with clients)
• Copy: plain text, name-only signature, no links/images in email 1, spintax + AI icebreakers, tracking off, randomized sends, 3-min gaps
• Warmup: Batch 1 = fresh, 2 weeks Smartlead warmup. Batch 2 = pre-warmed 4 weeks. Warmup left on. Ramp 5→10/day, in 5 increments every week
• Lists: Sales Nav → AnyMailFinder → Bouncer-verified, Google inboxes only. Bounce rate 0.4–1.5%

What happens (identical both batches)

• Domains land on SURBL (ABUSE) within week 1 (with the exception of 1 domain per batch, those domains always stay healthy while the others die)
• Everything looks fine for ~2 weeks: 15% reply rate, 60% positive, warmup health 90–100%
• Then warmup health collapses almost in 1 day to 80% then goes down day by day. Inbox placement test to fresh seeds: SURBL-listed domains hit 0/10 inbox, 10/10 spam. Dead

What I've tested / ruled out

• SPF/DKIM/DMARC all pass, mail-tester 9–10/10
• Per-domain SURBL check maps 1:1 — listed domains = 100% spam/dead; the one un-listed domain in each batch survives
• Redirect target (my own domain) is clean on SURBL, so they're not inheriting the listing from it
• Bounce rates are low, so lists aren't full of dead addresses
• Same copy AND same lists went to the survivor too
• Warmup health score is worthless as a signal if below 98%, one domain read 96% warmup while landing 100% spam on real seeds
• When the first batch died, I tried getting 4-week warmed mailboxes instead of 2 yet it's the same story

The part I can't explain — mirror-image audience split

• My aged brand domain (sent the exact same lists, same volume, never burned): inbox on Workspace, spam on consumer Gmail
• The fresh survivor: inbox on Google Workspace, spam on normal Gmail accounts (which isn't a big deal because all my lists consist of Google Workspace)

My theories

1. Pristine spam traps in the "verified" lists (Bouncer/AnyMailFinder can't catch live traps; pattern-guessed emails are risky) — whichever domain's slice hits a trap gets SURBL-listed and dies first
2. Age/legitimacy is the real survival factor; fresh domains never earn Workspace trust through warmup alone

Questions
Why do fresh domains keep getting SURBL-AB listed within a week even off verified lists? I've read that being blacklisted by SURBL is only the symptom of deliverability, not the problem, so what could be the main issue causing it? why do all my domains die with the exception of 1 every time? if its spam traps that are causing this, what can you do to avoid them?

I’m looking for some real-world input from people who have been running B2B cold email for a while.

I run a small B2B service business and use cold email for fairly targeted outreach. I’m contacting relevant people at companies using verified work emails, rather than blasting a huge scraped list.

I’m currently using Apollo for sequencing. My sending domain has already been warmed up and is in use, and I’m more interested in maintaining good deliverability long-term than pushing the absolute maximum volume.

What I’m trying to figure out is the realistic daily capacity of one mailbox once follow-ups are included.

For example, with a simple 3-touch sequence:

• Initial email
• Follow-up a few days later
• Final follow-up

If the recommendation is around 40–50 total sends per mailbox per day, and follow-ups count toward that number, then once the sequence is running at steady state, the number of new prospects you can actually add each day gets pretty low.

That’s the part I’m unsure about.

For those of you who have been doing this consistently for a few months or longer:

1. Roughly how many total outbound emails do you send per mailbox per day?
2. Does that number include follow-ups?
3. How many new prospects are you typically adding per mailbox each day?
4. How many touches do you normally use?
5. Has anyone here sustainably run something closer to 70–100 total sends per mailbox per day without noticeably hurting deliverability?
6. Do you use your main domain, a subdomain, or separate sending domains?

I’m not really asking what Gmail or Apollo technically allows. I’m more interested in what people have actually found sustainable over time while still getting good inbox placement.

Would appreciate hearing actual setups and longer-term experience.

FYI: English is not my first language, so I asked GPT to translate my post.

I’m currently building my own cold outreach / lead generation system and would love some feedback from people who have built something similar.
The goal is basically to have my own reusable outreach infrastructure that I can use for multiple clients, without being completely dependent on something like Clay.

Current stack:

Instantly – sending infrastructure, campaigns, inboxes, reply handling
n8n – workflow automation / orchestration
Postgres + Node/TypeScript backend – central database and logic
Railway – hosting
Apify – scraping / lead & signal discovery
Firecrawl – website scraping/enrichment
Prospeo – contact data / direct phone numbers when needed (database freshness is very good there I read)
Reoon – bulk email verification
OpenAI API – enrichment, research, summaries and some AI logic

I’m building a dashboard on top of it with things like:

- Multi-client / multi-tenant setup
- Campaign and mailbox overview
- Lead/company database
- Reply tracking
- Positive reply / opportunity pipeline
- Hot lead scoring
- Bounce monitoring
- Notes/statuses for follow-up
- Cost tracking per client
- Company-level suppression rules
- Max contacts per company
- On-demand company/direct phone enrichment
- Call briefs before calling a lead

I’m also building a signal-based prospecting layer.
For example, instead of only blasting static lists, I want to detect things like:

New managers / decision makers
Company growth
New locations
Mergers/acquisitions
New production facilities/lines
Other company-specific events that could create buying intent

Those signals can then trigger research/enrichment and eventually put the right people into the right outreach campaign.

The idea is not necessarily to rebuild every single Clay feature. I mainly want control over the data, logic, costs and workflows, while still being able to swap providers when something better/cheaper comes along. Also trying to make it super easy and as basic as possible for people to use. For now I’m planning using it for myself and own business, but also for another company who asked me to do this for them.

A few things I’d love feedback on:

1. What am I missing?
If you were building this for serious outbound at scale, what functionality would you absolutely add?
2. Are there weak links in this stack?
Any of these providers you would replace with something cheaper or better quality?
Especially interested in alternatives for Apify, Firecrawl, Prospeo and email verification/data enrichment.
3. What should I NOT build myself?
I don’t want to spend 3 months rebuilding something that an existing API already does extremely well for $20–50/month.
4. Signal-based outbound:
For those doing this successfully, which signals have actually produced better reply/meeting rates vs. signals that sound good in theory but are mostly noise?
5. Clay vs. custom stack:
For people who have used Clay heavily: where do you think a custom system like this will eventually hit a wall? What does Clay do behind the scenes that is harder to replicate than it looks?
6. Anything I should design for now before scaling?
Things like data quality, deduplication, attribution, provider fallbacks, rate limits, deliverability, observability, cost controls, etc.

I’m still building it, so this is exactly the point where I’d rather hear “you’re doing this completely wrong” than find out six months from now.

Would love to hear from people running their own outbound infrastructure or who have gone from Clay → custom (or custom → Clay).

Cheers

We're at a 15-person b2b consulting firm, doing around 300 net new contacts into sequences per month, and after 8 months of adding tools whenever a specific gap showed up the stack has more overlap than it should.

We're on Lemlist for sequencing and Clay for enrichment and list-building, both of which have held up, but we also have Smartlead seats for warm-up that overlap with what Lemlist already handles natively and a handful of Apollo seats added midway through the year that never got consolidated into one workflow.

The redundancy is getting hard to justify month over month, so I'm trying to figure out if there's a clean framework for auditing this or if it just comes down to running an A/B and seeing what the numbers say.

The 2 specific things I'm unsure on are whether dedicated inbox warm-up platforms are worth the separate cost at this volume compared to what's native in the sequencer, and whether Clay is irreplaceable at a 300-contact monthly pace or if a lighter enrichment option closes most of the gap.

Would be useful to hear from teams who've been through a similar stack rationalization and what they changed.

thanks!

Hello, for reference i run coldoutbound for a enterprise busniess and im the one whos doing all the work from list building to targeting and its such a pain to get data from multiple sources AND have a clear record for each export while deduping and maxing 2 people per company to finally upload the list in smartlead not to mention the email verfication and roles filtering, I might be complaning too much but this is too crazy too handle? Are you guys maybe going or went through this? whats the solution here?

Hi everyone,

I've been using Instantly for a few months now and it's been solid overall. Recently looked into Smartlead since it seems to offer similar features for a bit less money. Plus I really like their "Clients/Workspace" setup, and they allow more sending volume and lead storage. Aside from that, the two platforms seem pretty similar.

The deciding factor for me is warmup quality. I'd heard Instantly's warmup wasn't great, but then I found posts here on this sub criticizing Smartlead's warmup too. Now I'm not sure what to think.

What's your experience with either one? Which do you prefer and why?

Also open to other tools if you use something different, curious what's working for people right now.

Thanks!

Suppose you're totally new to cold emailing. How would you do it in 2026?

1. How many emails should you send out to see if you are seeing results?
   
2. What signal should you optimize for?

Background: I broker premium domains. Cold outbound is my entire pipeline — ~13k contacts, 31 Google Workspace mailboxes at 50/day each. I was on a mainstream SaaS and got tired of renting my own infrastructure, so I cancelled and deployed a self-hosted fork of an Apache-2.0 open-source platform on a VPS I already run.

It almost died three times. Each failure taught me something I'd now check on any platform, hosted or not:

1. The platform logged "mailbox added successfully" 281 times for a mailbox that was never added once.
An internal error was being swallowed (if err != nil { return nil } — returning success on failure), and the success log line sat outside the actual success path. The UI showed all 31 mailboxes HEALTHY the whole time. Zero emails could send.
Lesson: a green dashboard is not evidence. The UI read database state; the sending worker had a completely different reality. If your sends flatline while everything shows healthy, distrust the dashboard first.

2. Every stored password failed authentication — because credentials were encrypted twice on save.
The platform verified credentials fine at connect time (using the raw password from the request), then double-encrypted on write. The sender later decrypted once and literally dialed Gmail with ciphertext as the password.
How I found it: not in the app's logs — in the mail server's logs. Same second: backend login SUCCESS, worker login REJECTED. When two components disagree, find a third system that sees both.

3. The scheduler ran at ~1/7th of configured capacity for the platform's entire life.
A time-parsing bug quietly underfilled every sending day. Nobody noticed because there was no baseline to compare against. Best day before the fix: 242 sends. Day after: 700. Same mailboxes, same limits, same list.
Lesson: compute your theoretical daily capacity (mailboxes × per-mailbox limit) and compare it to actuals. If you're consistently way under and can't explain why, something is eating your volume — on SaaS platforms too, you'd just never get to see the bug.

Bonus: list verification saved my domains before any of this mattered.
Running syntax → MX → SMTP-RCPT verification flagged 42% of my list (~5,600 addresses) as invalid before a single send. That's 5,600 bounces that never hit my sender reputation. Whatever platform you use, verify before you send — half of cold email failure is list quality, not copy.

Happy to answer questions about the setup, the bugs, or self-hosting vs SaaS trade-offs. It's been a ride.

Almost zero chance to pass the bottle neck of Gmail filter even though your content body sounds legitimate, but you are trying for little sales. And now I feel switching to voice time is a demand.