Conrad Niedzielski

the cold email infrastructure market was designed around one premise sell agencies visibility into problems you created monitoring as an upsell rotation as an upsell health scores as an upsell dashboards as an upsell we built peeker because we think this model is wrong infra that monitors itself heals itself orders its own replacements and shows you everything in real time isn't a premium tier it's just what infrastructure should be if you run cold email at scale, you deserve tools built for your actual problem that's what we're building retweet if you think the cold email infra market needs to change. let's find everyone who agrees. #coldEmail #coldEmailInfrastructure #emailDeliverability #agencyOwner #outboundSales #agencyGrowth

agency that switched to peeker 90 days ago before: → 4hrs/week on inbox management → 2 client escalations in 60 days → deliverability checked manually every friday → 3 separate monitoring tools after: → 0hrs/week on inbox management → 0 client escalations since onboarding → deliverability monitored 24/7 automatically → 1 dashboard for everything they didn't get smarter they stopped doing work their infrastructure should have been doing like if you want your agency to look like the 'after' version #agencyOwner #coldEmail #coldEmailInfrastructure #emailDeliverability #agencyGrowth

agency owners: how many domains are you managing for clients right now a) 1-10 b) 11-30 c) 31-60 d) 60+ and are you monitoring all of them in one place drop your answer retweet so we get a real sample here. building something for every level of this #coldEmail #agencyOwner #emailDeliverability #coldEmailInfrastructure #outboundSales

everything you need to know about domain reputation for cold email — no fluff 🧵 what domain reputation actually is: a score that email providers assign to your sending domain based on your sending behavior. it determines whether your emails land in inbox, promotions, or spam. what affects it: → domain age (older = more trusted) → sending history (consistent = trusted, erratic = flagged) → spam complaint rate (above 0.1% = red zone) → bounce rate (above 3% = red zone) → blacklist appearances → authentication (spf/dkim/dmarc must all pass) how to protect it: → monitor continuously, not monthly → separate domain per campaign segment → auto-rotate inboxes before reputation degrades → never send from your primary domain save this. share with every agency owner still using their primary domain for cold sends. #coldEmail #emailDeliverability #coldEmailTips #inboxPlacement #agencyOwner #outboundSales

what good deliverability alerts look like not: "your score dropped" yes: → "domain xyz.com appeared on spamhaus at 6:47am — affected inboxes paused from sends" → "mailbox 3@yourdomain.com health score dropped to 42 — replacement queued" → "dkim misconfiguration detected on new domain — action required before first send" the difference between a score and an alert is whether you know what to do next like if your current tool gives you a score but not an action item #emailDeliverability #coldEmail #coldEmailInfrastructure #agencyOwner #inboxPlacement

the cold email infrastructure market was built around selling you visibility into problems it created charge for monitoring charge for rotation tools charge for the dashboard charge for support when campaigns break the entire model depends on your infrastructure being just broken enough to need constant management we built peeker on a different premise infrastructure that monitors itself, heals itself, orders its own replacements, and shows you everything in real time is just better infrastructure retweet if you think the infrastructure market needs to be rebuilt around agencies, not around upsells #coldEmail #coldEmailInfrastructure #emailDeliverability #agencyOwner #outboundSales #agencyGrowth

heard from an agency owner yesterday "we saved our biggest client because peeker flagged a blacklist hit at 7am campaign was scheduled for 9am we fixed it before the send client never knew anything happened" that's the whole point the best infrastructure stories are the ones that never become stories like if you wish you'd had something like this running before your last deliverability crisis #coldEmail #coldEmailInfrastructure #emailDeliverability #agencyOwner #clientRetention

real talk what's the one thing about running cold email at scale that nobody warned you about for me it's how fast infra breaks when you add clients one week you're running 5 accounts fine next week you've got 12 and everything needs attention at once drop yours below reply with the thing nobody warned you about. this thread is going to be useful for everyone #coldEmail #agencyOwner #emailDeliverability #agencyGrowth #outboundSales

running cold email for 10 clients 50 sending domains 300+ active mailboxes monitoring all of them manually is 15+ hours a week of infrastructure management or one dashboard real-time alerts auto-ordering zero hours a week the math isn't complicated like if you've ever done the math on how many hours you spend managing infra #coldEmail #coldEmailInfrastructure #agencyOwner #emailDeliverability #agencyGrowth

most agencies check blacklists after a client complains after reply rates drop after the campaign has been burning for 2 weeks peeker monitors 50+ blacklist registries continuously and flags the moment any of your sending domains appear you find out before your next send not after that's the difference between proactive and reactive infrastructure like if your current tool tells you about blacklists after the fact #emailDeliverability #coldEmail #coldEmailInfrastructure #agencyOwner #inboxPlacement

why cold email infrastructure has to come before copy — thread 🧵 most people think: step 1 → write good emails step 2 → build clean lists step 3 → set up sending tool step 4 → profit the real order: step 1 → build infrastructure that actually delivers step 2 → build clean lists step 3 → write good emails step 4 → profit here's why the order matters: the best copy in the world sitting in a spam folder generates zero replies you can't a/b test your way out of a blacklisted domain the sending layer is the foundation. everything else builds on it. retweet if this is the order you wish someone had told you from day one #coldEmail #coldEmailInfrastructure #emailDeliverability #agencyOwner #outboundSales #coldEmailTips

two agencies same copy same list same offer same icp agency a: manual infra, checking deliverability weekly, replacing inboxes when they remember agency b: self-healing infra, real-time monitoring, auto-ordering, zero manual intervention agency b closes more not because they're smarter because their emails actually land like if you know which agency you've been running #coldEmail #emailDeliverability #coldEmailInfrastructure #agencyOwner #inboxPlacement #outboundSales

controversial take the best agency cold email setups are boring no manual tinkering no late nights fixing broken inboxes no heroics when a domain gets flagged just infrastructure that runs itself agencies obsessing over manual configuration are losing to the ones who automated it and moved on boring infrastructure wins every time agree or disagree? reply with your counterargument — i genuinely want to hear it #coldEmail #agencyOwner #coldEmailTips #outboundSales #agencyGrowth #emailDeliverability

talked to an agency owner last week 8 clients running everything manually 3 different monitoring tools 2 inbox replacement services he said: "i spend more time managing the infrastructure than managing the clients" that's not a business problem that's an infrastructure problem one stack. one dashboard. automatic recovery. that's the job that should never exist. like if this is you right now. it doesn't have to be. #agencyOwner #coldEmail #coldEmailInfrastructure #emailDeliverability #agencyGrowth

what you get with peeker that competitors charge separately for ✅ real-time deliverability dashboard — free ✅ blacklist monitoring (50+ registries) — free ✅ per-mailbox health scoring — free ✅ spf / dkim / dmarc validation — free ✅ auto-ordering on inbox degradation — included ✅ self-healing rotation logic — included ✅ multi-client account isolation — included competitors charge $49-149/mo for each of these we include them because infra that charges you to watch itself fail isn't infrastructure it's a subscription trap like if you're paying for at least one of these as a separate tool right now #coldEmail #coldEmailTools #emailDeliverability #agencyOwner #coldEmailInfrastructure #SaaS

how self-healing cold email infrastructure works — step by step, no fluff 🧵 step 1: continuous health scoring — every mailbox scored in real time. bounce rate, spam flags, reply rate, blacklist status. always on. step 2: threshold detection — score drops below your configured threshold → mailbox pulled from rotation automatically. no human decision required. step 3: auto-ordering triggers — if the degraded inbox can't recover in a set window → replacement auto-ordered. no ticket. no manual action. step 4: background warmup — replacement starts warming while healthy inboxes carry the send volume. campaign never pauses. step 5: automatic reintegration — new inbox passes warmup → back in rotation automatically. cycle complete. time you spent on this: 0 minutes. retweet if this is how every cold email agency should be running their stack #coldEmail #coldEmailInfrastructure #emailDeliverability #agencyOwner #outboundSales #coldEmailTips

what's the biggest cold email infrastructure problem at your agency rn a) no real-time visibility across clients b) manually replacing burned inboxes c) deliverability drops with no warning d) paying too much for tools that don't talk to each other drop your letter. building for exactly this. retweet so more agency owners see this. curious if b is as common as i think #coldEmail #agencyOwner #emailDeliverability #outboundSales #coldEmailInfrastructure

agency came to us managing cold email for 14 clients situation: → no unified deliverability view across accounts → 3 burned domains in 60 days → one client threatening to churn 30 days on peeker: → all 14 accounts visible in one real-time dashboard → auto-ordering replaced 2 degraded inboxes — they didn't touch a settings page → inbox placement up across the board → at-risk client renewed infrastructure isn't exciting until it saves a $6k/mo client relationship like this if you've saved a client relationship because you caught a problem early #agencyOwner #coldEmail #clientRetention #emailDeliverability #coldEmailInfrastructure #agencyGrowth

imagine running cold email for 15 clients and finding out campaign 7 has had a blacklisted domain for 11 days not from your dashboard not from an alert from the client asking why no one has replied this week this is the standard in agency cold email right now you should always know before they do like if this has happened to you. let's make the industry actually talk about it #coldEmail #agencyOwner #emailDeliverability #coldEmailInfrastructure #clientRetention

running cold email for multiple clients from one place → each client's domains isolated from each other → deliverability tracked per account, not averaged across your stack → alerts by client, not one noisy feed → auto-ordering queued per account independently → one dashboard. all clients. real time. this is what agency-grade infrastructure looks like not 12 browser tabs and a spreadsheet like this if you're managing multi-client cold email without a unified view right now #agencyOwner #coldEmail #coldEmailInfrastructure #emailDeliverability #agencyGrowth