Send Unlimited Cold Email and Reach the Inbox: 90%+ Placement, One Pipeline
Check out howSpamCipher is the cold email platform that can promise 90%+ inbox placement, because it owns the whole deliverability pipeline in one place. Unlimited sending, fully automated.
- 19-point email verification, instant result
- One pipeline: verify, warm up, place, send, automate
- 100 bonus credits + a placement test, no credit card
The cold email platform trusted by 650,000+ senders across the world!
One platform for the entire cold email pipeline
Most teams stitch together a verifier, a warm-up tool, and a sender, and the seams leak. SpamCipher owns all five stages as one connected system, which is the only way to promise you 90%+ inbox placement.
Verify
Clean every address with 19-point verification before you send, so bounces and spam traps never touch your reputation.
Warm
Warm your domains and mailboxes on a real seed network, then keep a baseline running under live campaigns so reputation never goes cold.
Place
Measure exactly where your mail lands with seed-based inbox placement testing, per provider, instead of guessing from open rates.
Send
Send unlimited cold email across warmed domains and mailboxes, with safe per-mailbox limits and automatic throttling built in. Explore Cold Email Sending.
Automate
Build sequences, branch on behavior, and let an AI Reply Agent work every reply, all fully automated on autopilot. Explore Automations.
Reach the inbox
Because every stage feeds the next, 90%+ inbox placement stops being a good month and becomes your baseline.
Get started with SpamCipher
Pick the path that fits where you are, from a quick list clean to a fully automated cold email engine that warms your mailboxes, sends your campaigns, replies for you, and protects your domains.
List cleaning
No integration. Clean a list whenever you need to.
- 1Sign upCreate your free SpamCipher account.
- 2Upload your listDrop in a CSV of email addresses.
- 3Download clean listGet verified, deliverable contacts back.
ESP sync
Keep the ESP you already use clean, automatically.
- 1Sign upCreate your account.
- 2Connect your ESPConnect to Mailchimp, HubSpot and 100+ more in one click.
- 3Write back to your ESPVerification results sync straight back into your ESP.
Cold email on autopilot
Verify, warm, send, and protect, all in one place.
- 1Connect your mailboxesBring your own, or use done-for-you inboxes. Unlimited mailboxes.
- 2Warm up automaticallyWe build sender reputation before you ever send.
- 3Launch your campaignsMulti-step sequences with A/B variants. Unlimited sending.
- 4Let AI handle the follow-upReply agents draft responses and no-code automations run the rest.
- 5Stay protectedAlways-on guards throttle or pause a mailbox before it burns your domain.
Not sure which fits? The right path depends on your current stack. We work with you to make integrating and using SpamCipher frictionless.
Create My Free AccountEverything you need to run cold email at scale
Send, automate, verify, warm, place, and monitor. The full cold email pipeline in one platform, so everything you send has the best shot at the inbox.
Send unlimited cold email that lands
Send from your own mailboxes or ones we build for you, warmed on our seed network and sent at volume, so you can scale outbound without torching your reputation.
- Unlimited sending, no per email fees
- Send from your own mailboxes or ones we build for you
- Automatic warm-up on our seed network
- Automatic inbox rotation across mailboxes and domains
- Real inbox placement, measured on seed accounts

Put your cold email on autopilot
Build multi step sequences in a visual Flow builder, keep audiences fresh with Living Segments, and let an AI Reply Agent work every reply, without ever risking the inbox.
- Visual Flow builder for sequences
- Multi step cold email sequences
- Living Segments that maintain themselves
- An AI Reply Agent on every reply
- Automation that never costs you the inbox

Clean your list so you can send at scale
Verify a single address or upload a whole list. SpamCipher checks every contact in real time and flags the ones that quietly hurt your sender reputation.
- Invalid and mistyped addresses
- Spam traps
- Disposable and temporary inboxes
- Catch all domains and generic role addresses
- 30+ data points on every contact

Find the right email for any contact
Search by name and company to discover verified professional email addresses, one at a time or in bulk.
- Find emails from a name and company
- Confidence scores on every result
- Verification built into every find
- Single or bulk lookups
- Results ready to export

See what is hurting your inbox placement
Run a full deliverability scan of your sending domain and get a plain language report of what is wrong, why, and how to fix it.
- SPF, DKIM and DMARC authentication
- Blacklist and DNSBL exposure
- Spam trap and infrastructure checks
- Domain age and reputation signals
- A trust score with a plain language AI summary

Watch DMARC and reputation around the clock
SpamCipher ingests your DMARC reports and monitors your domains and IPs continuously, so problems surface before they cost you.
- Aggregate and forensic DMARC reports
- TLS reporting
- Attribution for each sending source
- Blacklist and custom IP monitoring
- Alerts by email and webhook on every change

Keep every list clean, automatically
Connect your ESPs and let SpamCipher verify new and existing contacts on a schedule, with no manual uploads.
- Scheduled reverification
- Automatic sync of new contacts
- Results written back to your ESP
- Reconcile leads across multiple ESPs
- Continuous, fully automated hygiene

Works with the tools you already use
Connect SpamCipher to your ESP and stack in a few clicks, and keep verification results flowing where you need them.
- Connect popular ESPs in a few clicks
- 100+ supported platforms
- Sync verification results both ways
- Webhooks for automation
- A public REST API with keys

Why choose SpamCipher?
You want results from your email program. Here is why teams trust SpamCipher to deliver them.
The full cold email loop
Verify, warm up, send, and protect, all from one platform on a single credit balance. No four separate subscriptions to stitch together.
Unlimited sending and mailboxes
Connect unlimited mailboxes and send unlimited cold email from $39. Sending is never metered per email.
Automatic mailbox warm-up
We build sender reputation before you send, so your campaigns land in the inbox instead of spam.
AI agents and no-code automations
AI reply agents draft your responses and no-code flows run the follow-up, so outreach keeps moving without you.
99.8% accurate verification
Verify single addresses, bulk lists, and signups in real time with multi layer checks before you send.
Always-on deliverability protection
Domain Health, DMARC, blacklist, and real seed inbox-placement tests watch your reputation around the clock, and act before a domain burns.
Enterprise security and compliance
SOC 2 Type II, ISO 27001, HIPAA, GDPR, Privacy Shield, and CCPA aligned, with encryption in transit and at rest.
Trusted worldwide, works with 100+ tools
Teams around the world rely on SpamCipher to reach the inbox, and it connects to 100+ ESPs and CRMs both ways.
Clean lists so you can send at scale without burning domains
We give less common domains a thorough examination, so you are never stuck with unknown results.
SpamCipher plugs into the sending tools you already use
Connect SpamCipher's real time verification API to the email marketing and delivery platforms you already use. Verify in bulk, or clean your list automatically as new contacts sign up.
Works with 100+ popular ESPs, CRMs, and email delivery platforms, with two way sync and webhooks for automation.
View all integrationsWhen it comes to reaching the inbox, the best platform for teams is SpamCipher.
How teams use SpamCipher to protect deliverability and reach more inboxes.
How TechCorp lifted its inbox rate from 62% to 94%
"Inbox rate went from 62% to 94% after SpamCipher pinpointed the exact content triggers. We were blind before this tool."
How MailFlow caught a silent DKIM failure before it hit
"Found a misconfigured DKIM key that had been silently failing for weeks. The DMARC verification alone saved us from a major crisis."
How SendPro Agency replaced three tools with one
"We run 200+ campaigns a month. SpamCipher replaced three separate tools in our stack. The seed testing is a game changer."
How DataSync grew open rates 28% in a month
"SpamCipher's content scan caught spam triggers our team completely missed, and the AI insights spelled out exactly how to fix each one. Our open rates jumped 28% in the first month."
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Pay once, or bundle everything
Buy credits one time and use them whenever, or get the full pipeline plus continuous deliverability monitoring on one subscription at a lower effective rate. Unlimited cold-email sending and mailboxes are included either way.
Buy a pack, use it whenever. No subscription, no expiry.
Starts at 2,000 credits, up to 1,000,000. The more you buy, the lower the per-credit rate.
- Credits that never expire
- Real-time and bulk email verification
- Email Finder with real SMTP checks
- Domain Health scans and single domain checks
- AI features and Super Search draw from the same credits
- Volume pricing: the more you buy, the lower the per-credit rate
- No subscription, no auto-renew, and never charged for unknowns
Best for occasional cleaning and one-off campaigns.
Buy creditsThe whole pipeline plus always-on monitoring, in one subscription.
Bundles 10,000+ monthly credits that roll over while active. Annual billing saves 20%.
- 10,000+ monthly credits at a lower per-credit rate
- Credits roll over month to month while active
- Everything credits cover on pay-as-you-go
- Continuous Domain Health, DMARC, blacklist, and custom-IP monitoring
- Seed-based inbox placement tests, 100 a month included
- Email server tests, 100 a month included
- Warm-up mailboxes, 5 included then $20/mo each
- Annual billing saves 20%
Best for teams sending and scaling outbound continuously.
Get SpamCipher ONEThe full outreach suite ships with both pay-as-you-go and SpamCipher ONE, at no extra cost.