BUILT BY OPERATORSBehind 40M+ sends a day

Dedicated email sequencerpowered by superintelligence.

Dedicated IP servers for every workspace. AI that writes your copy, answers replies and runs follow-ups, while inbox health and blacklists are checked daily. Built for teams sending at volume.

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Campaigns

✦AI

✦Unibox

Senders

Leads

AAcme Growth

Campaigns

Unibox 14

Senders

Leads

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CAMPAIGNSTATUSSENTREPLIESPOSITIVEPROGRESS

Q4 · Agency foundersActive4,210286162

SaaS heads of salesActive2,94017188

Re-engage · Q3 no-repliesPaused1,1083917

Recruiters · EUActive8605223

Webinar follow-upDraft———

BRIEF

Agency founders, 10–50 staff. We book 15+ meetings a month with done-for-you outbound. Tone: short, casual, no hype.

SETTINGS

3 stepsSpintax onSpam checkUnder 90 words

✦ Generate sequence

Step 1Step 2Step 3● Spam score 98 / 100

Subject{quick question|quick one|idea}, {{first_name}}?

{Hi|Hey|Hello} {{first_name}},
{Noticed|Saw} {{company}} {is hiring SDRs|just grew the team}. Most agencies we {talk to|work with} lose a day a week chasing replies.
We {book|set} 15+ meetings a month for teams like yours, {without new hires|with no extra headcount}.
{Worth a quick chat?|Open to a 10-min call?|Mind if I send details?}

{{ aiCombos }} unique variations · every lead gets a different email{{ aiPreviewLabel }}

Jordan K.✦ Auto-repliedInterestedSure, send times for Thursday

Priya S.OOOOut of office until Monday

Leo M.✦ Auto-repliedReferralTalk to Dana, she runs outbound

Ana R.Not nowPing me again in Q1

Jordan Kim · Northboundto maya@getacme.co · Q4 · Agency founders · step 22m ago

Sure, send times for Thursday. We’re reworking outbound for two clients this quarter and this is timely.

✦Replied automatically · 38s after JordanAuto-send

Maya Chen <maya@getacme.co>✓✓ Delivered · Inbox Great, Jordan. Does Thursday at 10:00 or 14:00 work? I'll send a short agenda with the invite.

Maya

● Sounds like MayaHer tone, her inbox, her name.

SENDERSTATUSHEALTHTODAY

maya@getacme.coSending9438 / 40

maya@tryacme.comSending9040 / 40

sam@getacme.coWarming7212 / 15

sam@acmehq.ioResting610 / 40

alex@acmemail.coSending8835 / 40

EMAILSTATUSNAMECOMPANYCAMPAIGN

jordan@northbound.ioInterestedJordan KimNorthboundQ4 · Agency founders

dana@leadwell.coSentDana OrtizLeadwellQ4 · Agency founders

priya@outpost.devOOOPriya ShahOutpost LabsSaaS heads of sales

leo@brightline.comRepliedLeo MartinBrightlineSaaS heads of sales

sam@kestrel.ioBouncedSam LeeKestrelRe-engage · Q3

ana@fieldnote.appSentAna RuizFieldnoteRecruiters · EU

12,480 leads · 3 filtersPage 1 of 208

Trusted by teams sending2M+ emails a day

FEATURES

Everything you need to
run outbound.

Inboxes, sequences, replies and clients in one workspace. Priced by sends, not by seats.

◈

Deliverability comes first.

Other tools sell warm-up as an add-on. In Zylar every inbox is warmed, rotated across domains and watched for drift before a single campaign ships.

✓Placement tests per domain, Gmail and Outlook✓Daily health score for every inbox✓Auto-pause the moment reputation drifts

About deliverability

Inbox placement● Live

98.6%▲ Stable

across 248 inboxes · last 7 days

REPUTATION DRIFTWithin range · 0.3%● Monitored continuously

OKWATCHAT RISK

Isolated sending,
with dedicated IPs.

Keep your reputation away from noisy neighbours. Your workspace sends from its own IP pool on single-tenant infrastructure, so nobody else’s campaigns can drag you into spam.

Dedicated IPsIsolated infrastructureStatic egressNoisy-neighbour isolation

Included on the Agency plan.

app.zylar.io/infrastructureLIVE

SHARED POOL
OTHER TOOLS

spammerblocklisted

Shared with 1,200+ other senders

YOUR POOL
DEDICATED

Only your campaigns, ever

IP REPUTATION98 / 100

BLOCKLISTS0 of 42

STATIC EGRESS.10/29

Multiple sending pools

Route campaigns across dedicated IP pools for scale and redundancy. Fully managed by our engineers.

Zylar routerRoutes every campaign automatically

Pool A203.0.113.10/29● Active

Capacity used

Agency clientsHealth98

Pool B203.0.113.20/29● Active

Capacity used

SaaS campaignsHealth97

Pool C203.0.113.30/29● Warming

Capacity used

Warm-up reserveHealth91

CapacityWarm-upRedundancyDeliverability

AVariant A Quick question, Jordan? Reply rate3.2%

★ WINNER BVariant B Idea for Northbound Reply rate4.1%

After 400 sends→B sends to 100% of remaining leads

A/B split tests

Test up to three versions at every step, and let Zylar promote the winner on its own.

Step-level testsSubject & bodyAuto-winner

THREAD · RE: QUICK QUESTION, JORDAN?

JSounds interesting. Can you send a bit more detail?Interested2:14 pm

if interested → follow-up campaign

MOf course, Jordan. Here’s a 2-minute overview of how we’d set it up for Northbound…Same threadSends in 2h

Reply follow-up campaigns

Push interested replies into a follow-up that keeps the conversation going in the same thread.

Conditional logicSmart timingSame thread

▣

Run every client from one Unibox

Each client gets its own workspace. Every reply lands in one place, labelled and ready to answer.

✓Unified inbox across every mailbox and client✓Interest labels: Interested, Not now, OOO, Bounce✓Reply, assign or push to HubSpot in place

See Unibox

▣ Inbox➤ Sent! Spam⊘ BouncesFILTERSAll workspaces⌄Sender email⌄Campaign⌄

Unified threadsPage 1

BBen RInterestedNorthboundRe: quick questionAug 19

JJane CUnsubLeadwellRe: the first step in…Aug 18

DDan SInterestedOutpostRe: are you interested…Aug 3

MMailer DaemonBounceBrightlineDelivery failed noticeJun 3

31 interested replies across 12 clients today.

∞

Built for scale, not for billing.

Most tools meter what you need to grow: inboxes, seats, campaigns. Zylar doesn’t. Add as many as your outbound needs and pay only for the emails you send.

✓Unlimited inboxes and campaigns✓No per-seat pricing, ever✓Warm-up included on every plan

About pricing

✉InboxesGmail, Outlook, SMTP● Included

∞Unlimited

+ Add inbox

▤CampaignsRun as many as you like● Included

∞Unlimited

+ New campaign

☺TeammatesRoles per workspace● Included

∞Unlimited

+ Invite teammate

↯Warm-upOn every inbox● Included

∞Unlimited

+ Start warm-up

Every client isolated. Every teammate included.

Unlimited workspaces and teammates, with roles all the way down to client view-only.

Unlimited workspacesUnlimited teammatesNo per-seat feesIsolated dataRoles & permissions

WORKSPACESUnlimited

NorthboundIsolated dataLeadwellIsolated dataOutpostIsolated dataBrightlineIsolated dataKestrelIsolated dataFieldnoteIsolated dataParallelIsolated dataAcme GrowthIsolated dataHarborIsolated dataLumenIsolated dataAtlasIsolated dataNovaIsolated data

TEAM MEMBERSUnlimited

KKate Johnsonkate@agency.comAdmin

MMike Leemike@agency.comEditor

AAva Chenava@agency.comEditor

SSam Parksam@client.comClient view-only

⌘

Plugs into the rest of your stack.

Native HubSpot sync, alerts in Slack and Teams, webhooks for every event and a full REST API. Building with AI? Zylar’s MCP server lets Claude, ChatGPT and Cursor read and run your campaigns directly.

✓Native integrations and signed webhooks✓Open REST API for every object✓MCP access for AI agents

About integrations

Zylar

◆Cursor✳Claude◎ChatGPT

▢ MCP status● Connected

Connect your toolsWorks with the tools your team already uses.

CHi team, can you help us set up DMARC on our new domains?

ZOn it. I’ll check the records now and send you the exact values.Implementation engineer · replied in 2 min

#zylar-yourcompany

☺

Dedicated support
from people who send.

Stop waiting on offshore ticket queues that don’t know your setup. You get a shared Slack channel with the engineers who build Zylar and run cold email every day.

✓1:1 support in a dedicated Slack channel✓Real engineers who unblock you in minutes✓Hands-on onboarding and migration help✓Deliverability reviews when something looks off

1:1 guidanceSlack channelFast responsesImplementation help

Talk to the team

TESTIMONIALS

What high-volume senders are saying.

From agencies and founders who send at scale.

★★★★★4.7Trustpilot

4.6G21,000+ reviews

COMMUNITY

Join the Zylar community.

Agency owners and founders swapping copy, deliverability fixes and what’s working in cold email right now.

Join the Slack community

FAQ

Questions?
We’ve got answers.

Something else? Talk to us.

Who is Zylar built for?{{ sign0 }}

Lead-gen agencies, sales teams, high-volume senders and founders running their own outbound. Anyone who wants a sequencer without a suite around it.

How is Zylar different from other cold email tools?{{ sign1 }}

Zylar does one job. There’s no lead database, AI agent or CRM to pay for. You get sequencing, a unified inbox and deliverability you can prove per domain.

Can I send from multiple email accounts?{{ sign2 }}

Yes. Connect unlimited Gmail, Outlook or SMTP inboxes on any paid plan. Zylar rotates sends across them with daily caps.

How does Zylar keep emails out of spam?{{ sign3 }}

Every inbox is warmed in a private pool, rotated with random gaps and placement-tested per domain. If a domain slips, Zylar pauses it before it hits spam. More on deliverability.

Can I switch from Instantly, PlusVibe or ManyReach?{{ sign4 }}

Yes. Reconnect your inboxes, import leads by CSV and paste in your sequences, or book a migration call and we’ll move everything with you.

Can I use Zylar for client accounts?{{ sign5 }}

Yes. On the Agency plan each client gets an isolated workspace with its own inboxes, leads and a shareable deliverability report.

Is there an API, webhooks or MCP?{{ sign6 }}

Yes, a REST API and signed webhooks from the Growth plan. Read the API docs.

Does Zylar charge for extra team members?{{ sign7 }}

No. Every paid plan includes unlimited teammates and inboxes. You pay for monthly email volume. See pricing.

✦Still have a question?Ask our AI agent. It answers from Zylar’s docs in seconds.

{{ askAns }}ZYLAR AI AGENT · ANSWERS MAY BE WRONG, TALK TO A HUMAN

Fewer tools.
More replies.

One sequencer. Every inbox healthy. Every reply in one place.

Join the waitlist Book a demo

Early access opening in waves

RATED BY TEAMS ON G2

Dedicated email sequencerpowered by superintelligence.

Everything you need torun outbound.

Deliverability comes first.

Isolated sending,with dedicated IPs.

Multiple sending pools

A/B split tests

Reply follow-up campaigns

Run every client from one Unibox

Built for scale, not for billing.

Every client isolated. Every teammate included.

Plugs into the rest of your stack.

Dedicated supportfrom people who send.

What high-volume senders are saying.

Join the Zylar community.

Questions?We’ve got answers.

Fewer tools.More replies.

Everything you need to
run outbound.

Isolated sending,
with dedicated IPs.

Dedicated support
from people who send.

Questions?
We’ve got answers.

Fewer tools.
More replies.