Your emails shouldn't die in spam, MailStrike gets you into the inbox.
MailStrike builds genuine sender reputation through persona-based warming: AI readers open, reply, and engage like real recipients. Your mail reaches the inbox, earns more responses, and converts instead of vanishing into spam.
Integrates with
inbox placement on outbound
fresh domain to outreach-ready
Cold outreach is mostly invisible.
You bought the domain, wrote the emails, hit send. Most of them were never seen.
AI-powered warming that providers trust.
MailStrike builds a steady record of real, human engagement on your domain, the exact signal Google, Microsoft, and every major provider use to decide you're a reputable sender, not a spammer.
Cold outreach is mostly invisible.
You bought the domain, wrote the emails, hit send. Most of them were never seen.
AI-powered warming that providers trust.
MailStrike builds a steady record of real, human engagement on your domain, the exact signal Google, Microsoft, and every major provider use to decide you're a reputable sender, not a spammer.
How MailStrike works.
A peer-to-peer network of real domains
MailStrike connects your domain with a network of other real, active domains and automates the exchange. Genuine sends and replies between real inboxes, never a closed loop of fake accounts.
A persona engine, not a bot network
Every mailbox runs a distinct human persona, its own reading speed, reply habits, active hours, even typo rate. To inbox providers it looks like real people corresponding, because behaviourally it is.
Active hours (24h)
Active hours (24h)
Active hours (24h)
Active hours (24h)
AI generated content sent in your style and hours
Every warming email is generated fresh by AI from your industry and business description, then sent within each persona's natural operating hours. No two messages are ever the same.
Used by teams at
- NetEase Games
- IT Monks
- Stardesk
- GearUp
Connect, configure, and you're warming.
Plug in a mailbox, dial in your settings, and MailStrike takes over. The whole setup takes about five minutes.
1Plug in your mailbox
One click for Google or Microsoft, an app password for any SMTP provider. No tokens to copy, no DNS headaches.
2Dial in your settings
Choose your personas, daily volume, and ramp speed. Sensible defaults have you covered if you'd rather not.
3Watch it work
Personas start engaging right away and your inbox reputation climbs, tracked live on your dashboard.
Built for everyone fighting the spam folder.
Whatever shape your deliverability problem takes, there's a path from spam to the inbox.
“We safely scaled outbound 3× in under 60 days. Inbox rates stayed above 90% the entire time. MailStrike actually moved the needle.”
Audit your deliverability, free.
Check SPF, DKIM, and DMARC records, scan 21 blacklists, and score your templates. No sign-up required.
Frequently asked questions
What is persona-based email warming?
Persona-based email warming assigns each mailbox in the engagement network a persistent behavioural archetype (Fast Scanner, Avg Reader, Thorough Reader, or Mobile-First) that defines its reply rate, dwell time distribution, response window, and typo frequency. The result is an engagement footprint that looks like a varied population of real recipients rather than a uniform script. Standard warmup tools cluster every action around a single mean, which filters can learn to detect.
How is MailStrike different from other email warmup tools?
Three things. Behavioural variance instead of uniform pings. LLM-generated multi-turn threads instead of canned templates. Active spam-folder recovery instead of opens only. Combined, those produce engagement traces with the shape filters actually trust. The Personas page covers the mechanics in depth.
Which email providers does MailStrike support?
Google Workspace, Microsoft 365, Yahoo, Proton, iCloud, Zoho, AWS SES, SendGrid, Mailchimp, Brevo, AOL, Fastmail, and any provider that exposes IMAP/SMTP. OAuth is supported for Google and Microsoft. Anything else uses an app password.
How long until I see results?
By around the two-week mark you should see a noticeable improvement in deliverability. The exact curve depends on what's happening externally to MailStrike (bounce spikes from a bad list, spam complaints, sudden volume jumps, or domain changes will all slow it down). A standard ramp reaches a stable Inbox Reputation Score above 90 by day 21 on a clean account.
Do I need to keep warming after my domain is healthy?
Yes. Sender reputation decays without ongoing engagement signals. Inbox providers continuously re-evaluate senders. MailStrike runs persona engagement continuously in the background at a lower volume after the ramp completes, so the reputation curve stays flat or rising while real campaigns go out.
How soon can I actually start sending cold email?
Three weeks on a standard ramp. The dashboard shows a Ready for outreach status once your reputation score, warmup time, and domain age all clear their thresholds. From there, start at low volume (20 to 30 sends a day) and scale up while warming continues in the background.
Ready to stop landing in spam?
Book a 20-minute call and be outreach-ready in three weeks.